The perf_cpu_time_max_percent_handler function in kernel/events/core.c in the Linux kernel before 4.11 allows local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation.

The SUSE Linux Enterprise 12 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).

CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).

CVE-2020-8647: Fixed a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).

CVE-2020-8649: Fixed a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).

CVE-2020-9383: Fixed an issue in set_fdc in drivers/block/floppy.c, which leads to a wait_til_ready out-of-bounds read (bnc#1165111).

CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).

CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).

CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).

CVE-2020-11609: Fixed a NULL pointer dereference in the stv06xx subsystem caused by mishandling invalid descriptors (bnc#1168854).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bnc#1170345).

CVE-2020-11608: Fixed an issue in drivers/media/usb/gspca/ov519.c caused by a NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs when there are zero endpoints (bnc#1168829).

CVE-2017-18255: The perf_cpu_time_max_percent_handler function in kernel/events/core.c allowed local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation (bnc#1087813).

CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).

CVE-2020-2732: A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest (bnc#1163971).

CVE-2019-5108: Fixed a denial-of-service vulnerability caused by triggering AP to send IAPP location updates for stations before the required authentication process has completed (bnc#1159912).

CVE-2020-8992: ext4_protect_reserved_inode in fs/ext4/block_validity.c allowed attackers to cause a denial of service (soft lockup) via a crafted journal size (bnc#1164069).

CVE-2018-21008: Fixed a use-after-free which could be caused by the function rsi_mac80211_detach in the file drivers/net/wireless/rsi/rsi_91x_mac80211.c (bnc#1149591).

CVE-2019-14896: A heap-based buffer overflow vulnerability was found in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).

CVE-2019-14897: A stack-based buffer overflow was found in Marvell WiFi chip driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to another STA (bnc#1157155).

CVE-2019-18675: Fixed an integer overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allowed local users (with /dev/video0 access) to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation (bnc#1157804).

CVE-2019-14615: Insufficient control flow in certain data structures for some Intel(R) Processors with Intel(R) Processor Graphics may have allowed an unauthenticated user to potentially enable information disclosure via local access (bnc#1160195, bsc#1165881).

CVE-2019-19965: Fixed a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition (bnc#1159911).

CVE-2019-20054: Fixed a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links (bnc#1159910).

CVE-2019-20096: Fixed a memory leak in __feat_register_sp() in net/dccp/feat.c, which may cause denial of service (bnc#1159908).

CVE-2019-19966: Fixed a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that will cause denial of service (bnc#1159841).

CVE-2019-19447: Fixed an issue with mounting a crafted ext4 filesystem image, performing some operations, and unmounting could lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c (bnc#1158819).

CVE-2019-19319: Fixed an issue with a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call (bnc#1158021).

CVE-2019-19767: Fixed mishandling of ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c (bnc#1159297).

CVE-2019-11091,CVE-2018-12126,CVE-2018-12130,CVE-2018-12127: Earlier mitigations for the 'MDS' Microarchitectural Data Sampling attacks were not complete. An additional fix was added to the x86_64 fast systemcall path to further mitigate these attacks. (bsc#1164846 bsc#1170847)

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).

CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).

CVE-2020-8647: Fixed a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).

CVE-2020-8649: Fixed a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).

CVE-2020-9383: Fixed an issue in set_fdc in drivers/block/floppy.c, which leads to a wait_til_ready out-of-bounds read (bnc#1165111).

CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).

CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).

CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).

CVE-2020-11609: Fixed a NULL pointer dereference in the stv06xx subsystem caused by mishandling invalid descriptors (bnc#1168854).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bnc#1170345).

CVE-2020-11608: Fixed an issue in drivers/media/usb/gspca/ov519.c caused by a NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs when there are zero endpoints (bnc#1168829).

CVE-2017-18255: The perf_cpu_time_max_percent_handler function in kernel/events/core.c allowed local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation (bnc#1087813).

CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).

CVE-2020-2732: A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest (bnc#1163971).

CVE-2019-5108: Fixed a denial-of-service vulnerability caused by triggering AP to send IAPP location updates for stations before the required authentication process has completed (bnc#1159912).

CVE-2020-8992: ext4_protect_reserved_inode in fs/ext4/block_validity.c allowed attackers to cause a denial of service (soft lockup) via a crafted journal size (bnc#1164069).

CVE-2018-21008: Fixed a use-after-free which could be caused by the function rsi_mac80211_detach in the file drivers/net/wireless/rsi/rsi_91x_mac80211.c (bnc#1149591).

CVE-2019-14896: A heap-based buffer overflow vulnerability was found in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).

CVE-2019-14897: A stack-based buffer overflow was found in Marvell WiFi chip driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to another STA (bnc#1157155).

CVE-2019-18675: Fixed an integer overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allowed local users (with /dev/video0 access) to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation (bnc#1157804).

CVE-2019-14615: Insufficient control flow in certain data structures for some Intel(R) Processors with Intel(R) Processor Graphics may have allowed an unauthenticated user to potentially enable information disclosure via local access (bnc#1160195, bsc#1165881).

CVE-2019-19965: Fixed a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition (bnc#1159911).

CVE-2019-20054: Fixed a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links (bnc#1159910).

CVE-2019-20096: Fixed a memory leak in __feat_register_sp() in net/dccp/feat.c, which may cause denial of service (bnc#1159908).

CVE-2019-19966: Fixed a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that will cause denial of service (bnc#1159841).

CVE-2019-19447: Fixed an issue with mounting a crafted ext4 filesystem image, performing some operations, and unmounting could lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c (bnc#1158819).

CVE-2019-19319: Fixed an issue with a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call (bnc#1158021).

CVE-2019-19767: Fixed mishandling of ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c (bnc#1159297).

CVE-2019-19066: Fixed memory leak in the bfad_im_get_stats() function in drivers/scsi/bfa/bfad_attr.c that allowed attackers to cause a denial of service (memory consumption) by triggering bfa_port_get_stats() failures (bnc#1157303).

CVE-2019-19332: There was an OOB memory write via kvm_dev_ioctl_get_cpuid (bsc#1158827).

CVE-2019-19537: There was a race condition bug that could have been caused by a malicious USB device in the USB character device driver layer (bnc#1158904).

CVE-2019-19535: There was an info-leak bug that could have been caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver (bnc#1158903).

CVE-2019-19527: There was a use-after-free bug that could have been caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver (bnc#1158900).

CVE-2019-19533: There was an info-leak bug that could have been caused by a malicious USB device in the drivers/media/usb/ttusb-dec/ttusb_dec.c driver (bnc#1158834).

CVE-2019-19532: There were multiple out-of-bounds write bugs that could have been caused by a malicious USB device in the Linux kernel HID drivers (bnc#1158824).

CVE-2019-19523: There was a use-after-free bug that could have been caused by a malicious USB device in the drivers/usb/misc/adutux.c driver (bnc#1158823).

CVE-2019-15213: An issue was discovered in the Linux kernel, there was a use-after-free caused by a malicious USB device in the drivers/media/usb/dvb-usb/dvb-usb-init.c driver (bnc#1146544).

CVE-2019-19531: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/yurex.c driver (bnc#1158445).

CVE-2019-19525: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/net/ieee802154/atusb.c driver (bnc#1158417).

CVE-2019-19530: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/class/cdc-acm.c driver (bnc#1158410).

CVE-2019-19536: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_pro.c driver (bnc#1158394).

CVE-2019-19524: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/input/ff-memless.c driver (bnc#1158413).

CVE-2019-19534: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_core.c driver (bnc#1158398).

CVE-2019-14901: A heap overflow flaw was found in the Linux kernel in Marvell WiFi chip driver. The vulnerability allowed a remote attacker to cause a system crash, resulting in a denial of service, or execute arbitrary code. The highest threat with this vulnerability is with the availability of the system. If code execution occurs, the code will run with the permissions of root. This will affect both confidentiality and integrity of files on the system (bnc#1157042).

CVE-2019-14895: Fixed a heap-based buffer overflow in the Marvell WiFi chip driver. The flaw could occur when the station attempts a connection negotiation during the handling of the remote devices country settings. This could allow the remote device to cause a denial of service (system crash) or possibly execute arbitrary code (bnc#1157158).

CVE-2019-18660: Fixed a information disclosure on powerpc related to the Spectre-RSB mitigation. This is related to arch/powerpc/kernel/entry_64.S and arch/powerpc/kernel/security.c (bnc#1157038 1157923).

CVE-2019-18683: Fixed a privilege escalation where local users have /dev/video0 access, but only if the driver happens to be loaded. There are multiple race conditions during streaming stopping in this driver (part of the V4L2 subsystem) (bnc#1155897).

CVE-2019-19062: Fixed a memory leak in the crypto_report() function in crypto/crypto_user_base.c, which allowed attackers to cause a denial of service (memory consumption) by triggering crypto_report_alg() failures (bnc#1157333).

CVE-2019-19052: A memory leak in the gs_can_open() function in drivers/net/can/usb/gs_usb.c allowed attackers to cause a denial of service (memory consumption) by triggering usb_submit_urb() failures (bnc#1157324).

CVE-2019-19074: A memory leak in the ath9k_wmi_cmd() function in drivers/net/wireless/ath/ath9k/wmi.c allowed attackers to cause a denial of service (memory consumption) (bnc#1157143).

CVE-2019-19073: Memory leaks in drivers/net/wireless/ath/ath9k/htc_hst.c allowed attackers to cause a denial of service (memory consumption) by triggering wait_for_completion_timeout() failures (bnc#1157070).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - The perf_cpu_time_max_percent_handler function in     kernel/events/core.c in the Linux kernel before 4.11     allows local users to cause a denial of service     (integer overflow) or possibly have unspecified other     impact via a large value, as demonstrated by an     incorrect sample-rate calculation.(CVE-2017-18255)

  - In the Linux kernel before 4.13.5, a local user could     create keyrings for other users via keyctl commands,     setting unwanted defaults or causing a denial of     service.(CVE-2017-18270)

  - The timer_create syscall implementation in     kernel/time/posix-timers.c in the Linux kernel doesn't     properly validate the sigevent-i1/4zsigev_notify field,     which leads to out-of-bounds access in the show_timer     function.(CVE-2017-18344)

  - arch/x86/kvm/emulate.c in the Linux kernel through     4.9.3 allows local users to obtain sensitive     information from kernel memory or cause a denial of     service (use-after-free) via a crafted application that     leverages instruction emulation for fxrstor, fxsave,     sgdt, and sidt.(CVE-2017-2584)

  - Linux kernel built with the KVM visualization support     (CONFIG_KVM), with nested visualization(nVMX) feature     enabled(nested=1), is vulnerable to host memory leakage     issue. It could occur while emulating VMXON instruction     in 'handle_vmon'. An L1 guest user could use this flaw     to leak host memory potentially resulting in     DoS.(CVE-2017-2596)

  - A race condition flaw was found in the N_HLDC Linux     kernel driver when accessing n_hdlc.tbuf list that can     lead to double free. A local, unprivileged user able to     set the HDLC line discipline on the tty device could     use this flaw to increase their privileges on the     system.(CVE-2017-2636)

  - A flaw was found that can be triggered in     keyring_search_iterator in keyring.c if type-i1/4zmatch     is NULL. A local user could use this flaw to crash the     system or, potentially, escalate their     privileges.(CVE-2017-2647)

  - A race condition leading to a NULL pointer dereference     was found in the Linux kernel's Link Layer Control     implementation. A local attacker with access to ping     sockets could use this flaw to crash the     system.(CVE-2017-2671)

  - A vulnerability was found in the Linux kernel in     'tmpfs' file system. When file permissions are modified     via 'chmod' and the user is not in the owning group or     capable of CAP_FSETID, the setgid bit is cleared in     inode_change_ok(). Setting a POSIX ACL via 'setxattr'     sets the file permissions as well as the new ACL, but     doesn't clear the setgid bit in a similar way this     allows to bypass the check in 'chmod'.(CVE-2017-5551)

  - The do_shmat function in ipc/shm.c in the Linux kernel,     through 4.9.12, does not restrict the address     calculated by a certain rounding operation. This allows     privileged local users to map page zero and,     consequently, bypass a protection mechanism that exists     for the mmap system call. This is possible by making     crafted shmget and shmat system calls in a privileged     context.(CVE-2017-5669)

  - A vulnerability was found in the Linux kernel where     having malicious IP options present would cause the     ipv4_pktinfo_prepare() function to drop/free the dst.
    This could result in a system crash or possible     privilege escalation.(CVE-2017-5970)

  - It was reported that with Linux kernel, earlier than     version v4.10-rc8, an application may trigger a BUG_ON     in sctp_wait_for_sndbuf if the socket tx buffer is     full, a thread is waiting on it to queue more data, and     meanwhile another thread peels off the association     being used by the first thread.(CVE-2017-5986)

  - It was found that the original fix for CVE-2016-6786     was incomplete. There exist a race between two     concurrent sys_perf_event_open() calls when both try     and move the same pre-existing software group into a     hardware context.(CVE-2017-6001)

  - A use-after-free flaw was found in the way the Linux     kernel's Datagram Congestion Control Protocol (DCCP)     implementation freed SKB (socket buffer) resources for     a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO     option is set on the socket. A local, unprivileged user     could use this flaw to alter the kernel memory,     allowing them to escalate their privileges on the     system.(CVE-2017-6074)

  - A flaw was found in the Linux kernel's handling of     packets with the URG flag. Applications using the     splice() and tcp_splice_read() functionality could     allow a remote attacker to force the kernel to enter a     condition in which it could loop     indefinitely.(CVE-2017-6214)

  - The hashbin_delete function in net/irda/irqueue.c in     the Linux kernel improperly manages lock dropping,     which allows local users to cause a denial of service     (deadlock) via crafted operations on IrDA     devices.(CVE-2017-6348)

  - It was found that the code in net/sctp/socket.c in the     Linux kernel through 4.10.1 does not properly restrict     association peel-off operations during certain wait     states, which allows local users to cause a denial of     service (invalid unlock and double free) via a     multithreaded application. This vulnerability was     introduced by CVE-2017-5986 fix (commit     2dcab5984841).(CVE-2017-6353)

  - The keyring_search_aux function in     security/keys/keyring.c in the Linux kernel allows     local users to cause a denial of service via a     request_key system call for the 'dead' key     type.(CVE-2017-6951)

  - The sg_ioctl function in drivers/scsi/sg.c in the Linux     kernel allows local users to cause a denial of service     (stack-based buffer overflow) or possibly have     unspecified other impacts via a large command size in     an SG_NEXT_CMD_LEN ioctl call, leading to out-of-bounds     write access in the sg_write function.(CVE-2017-7187)

  - In was found that in the Linux kernel, in     vmw_surface_define_ioctl() function in     'drivers/gpu/drm/vmwgfx/vmwgfx_surface.c' file, a     'num_sizes' parameter is assigned a user-controlled     value which is not checked if it is zero. This is used     in a call to kmalloc() and later leads to dereferencing     ZERO_SIZE_PTR, which in turn leads to a GPF and     possibly to a kernel panic.(CVE-2017-7261)

  - An out-of-bounds write vulnerability was found in the     Linux kernel's vmw_surface_define_ioctl() function, in     the 'drivers/gpu/drm/vmwgfx/vmwgfx_surface.c' file. Due     to the nature of the flaw, privilege escalation cannot     be fully ruled out, although we believe it is     unlikely.(CVE-2017-7294)

  - It was found that the packet_set_ring() function of the     Linux kernel's networking implementation did not     properly validate certain block-size data. A local     attacker with CAP_NET_RAW capability could use this     flaw to trigger a buffer overflow, resulting in the     crash of the system. Due to the nature of the flaw,     privilege escalation cannot be fully ruled     out.(CVE-2017-7308)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - A use-after-free vulnerability was found in DCCP socket     code affecting the Linux kernel since 2.6.16. This     vulnerability could allow an attacker to their escalate     privileges.(CVE-2017-8824i1/4%0

  - The OZWPAN driver in the Linux kernel through 4.0.5     relies on an untrusted length field during packet     parsing, which allows remote attackers to obtain     sensitive information from kernel memory or cause a     denial of service (out-of-bounds read and system crash)     via a crafted packet.(CVE-2015-4004i1/4%0

  - Integer signedness error in the MSM V4L2 video driver     for the Linux kernel 3.x, as used in Qualcomm     Innovation Center (QuIC) Android contributions for MSM     devices and other products, allows attackers to gain     privileges or cause a denial of service (array overflow     and memory corruption) via a crafted application that     triggers an msm_isp_axi_create_stream     call.(CVE-2016-2061i1/4%0

  - A denial of service flaw was found in the way the Linux     kernel's XFS file system implementation ordered     directory hashes under certain conditions. A local     attacker could use this flaw to corrupt the file system     by creating directories with colliding hash values,     potentially resulting in a system     crash.(CVE-2014-7283i1/4%0

  - It was found that the Linux kernel's ping socket     implementation did not properly handle socket unhashing     during spurious disconnects, which could lead to a     use-after-free flaw. On x86-64 architecture systems, a     local user able to create ping sockets could use this     flaw to crash the system. On non-x86-64 architecture     systems, a local user able to create ping sockets could     use this flaw to escalate their privileges on the     system.(CVE-2015-3636i1/4%0

  - Incorrect buffer length handling was found in the     ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in     the Linux kernel, which could be exploited by malicious     NCPFS servers to crash the kernel or possibly execute     an arbitrary code.(CVE-2018-8822i1/4%0

  - ** DISPUTED ** Kernel Samepage Merging (KSM) in the     Linux kernel 2.6.32 through 4.x does not prevent use of     a write-timing side channel, which allows guest OS     users to defeat the ASLR protection mechanism on other     guest OS instances via a Cross-VM ASL INtrospection     (CAIN) attack. NOTE: the vendor states 'Basically if     you care about this attack vector, disable     deduplication.' Share-until-written approaches for     memory conservation among mutually untrusting tenants     are inherently detectable for information disclosure,     and can be classified as potentially misunderstood     behaviors rather than vulnerabilities.(CVE-2015-2877i1/4%0

  - The tty_set_termios_ldisc() function in     'drivers/tty/tty_ldisc.c' in the Linux kernel before     4.5 allows local users to obtain sensitive information     from kernel memory by reading a tty data     structure.(CVE-2015-8964i1/4%0

  - An issue was discovered in the Linux kernel through     4.17.2. vbg_misc_device_ioctl() in     drivers/virt/vboxguest/vboxguest_linux.c reads the same     user data twice with copy_from_user. The header part of     the user data is double-fetched, and a malicious user     thread can tamper with the critical variables     (hdr.size_in and hdr.size_out) in the header between     the two fetches because of a race condition, leading to     severe kernel errors, such as buffer over-accesses.
    This bug can cause a local denial of service and     information leakage.(CVE-2018-12633i1/4%0

  - ** RESERVED ** This candidate has been reserved by an     organization or individual that will use it when     announcing a new security problem. When the candidate     has been publicized, the details for this candidate     will be provided.(CVE-2018-1092i1/4%0

  - fs/f2fs/extent_cache.c in the Linux kernel, before     4.13, mishandles extent trees. This allows local users     to cause a denial of service via an application with     multiple threads.(CVE-2017-18193i1/4%0

  - A design flaw was found in the file extended attribute     handling of the Linux kernel's handling of cached     attributes. Too many entries in the cache cause a soft     lockup while attempting to iterate the cache and access     relevant locks.(CVE-2015-8952i1/4%0

  - Off-by-one error in the pipe_advance function in     lib/iov_iter.c in the Linux kernel before 4.9.5 allows     local users to obtain sensitive information from     uninitialized heap-memory locations in opportunistic     circumstances by reading from a pipe after an incorrect     buffer-release decision.(CVE-2017-5550i1/4%0

  - The HMAC implementation (crypto/hmac.c) in the Linux     kernel, before 4.14.8, does not validate that the     underlying cryptographic hash algorithm is unkeyed.
    This allows a local attacker, able to use the     AF_ALG-based hash interface     (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash     algorithm (CONFIG_CRYPTO_SHA3), to cause a kernel stack     buffer overflow by executing a crafted sequence of     system calls that encounter a missing SHA-3     initialization.(CVE-2017-17806i1/4%0

  - The mp_get_count function in     drivers/staging/sb105x/sb_pci_mp.c in the Linux kernel     before 3.12 does not initialize a certain data     structure, which allows local users to obtain sensitive     information from kernel stack memory via a TIOCGICOUNT     ioctl call.(CVE-2013-4516i1/4%0

  - The perf_cpu_time_max_percent_handler function in     kernel/events/core.c in the Linux kernel before 4.11     allows local users to cause a denial of service     (integer overflow) or possibly have unspecified other     impact via a large value, as demonstrated by an     incorrect sample-rate calculation.(CVE-2017-18255i1/4%0

  - An issue was discovered in the btrfs filesystem code in     the Linux kernel. An invalid pointer dereference in
    __del_reloc_root() in fs/btrfs/relocation.c when     mounting a crafted btrfs image could lead to a system     crash and a denial of service.(CVE-2018-14609i1/4%0

  - The oz_usb_handle_ep_data function in     drivers/staging/ozwpan/ozusbsvc1.c in the OZWPAN driver     in the Linux kernel through 4.0.5 allows remote     attackers to cause a denial of service (divide-by-zero     error and system crash) via a crafted     packet.(CVE-2015-4003i1/4%0

  - drivers/hid/hid-logitech-dj.c in the Human Interface     Device (HID) subsystem in the Linux kernel through     3.11, when CONFIG_HID_LOGITECH_DJ is enabled, allows     physically proximate attackers to cause a denial of     service (NULL pointer dereference and OOPS) or obtain     sensitive information from kernel memory via a crafted     device.(CVE-2013-2895i1/4%0

  - drivers/usb/serial/cypress_m8.c in the Linux kernel     before 4.5.1 allows physically proximate attackers to     cause a denial of service (NULL pointer dereference and     system crash) via a USB device without both an     interrupt-in and an interrupt-out endpoint descriptor,     related to the cypress_generic_port_probe and     cypress_open functions.(CVE-2016-3137i1/4%0

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - Missing check in fs/inode.c:inode_init_owner() does not     clear SGID bit on non-directories for     non-members.(CVE-2018-13405)

  - A null pointer dereference in dccp_write_xmit()     function in net/dccp/output.c in the Linux kernel     allows a local user to cause a denial of service by a     number of certain crafted system calls.(CVE-2018-1130)

  - A flaw was found in the Linux kernel, before 4.16.6     where the cdrom_ioctl_media_changed function in     drivers/cdrom/cdrom.c allows local attackers to use a     incorrect bounds check in the CDROM driver     CDROM_MEDIA_CHANGED ioctl to read out kernel     memory.(CVE-2018-10940)

  - The madvise_willneed function in the Linux kernel     allows local users to cause a denial of service     (infinite loop) by triggering use of MADVISE_WILLNEED     for a DAX mapping.(CVE-2017-18208)

  - fuse-backed file mmap-ed onto process cmdline arguments     causes denial of service.(CVE-2018-1120)

  - Memory leak in the sas_smp_get_phy_events function in     drivers/scsi/libsas/sas_expander.c in the Linux kernel     allows local users to cause a denial of service (kernel     memory exhaustion) via multiple read accesses to files     in the /sys/class/sas_phy directory.(CVE-2018-7757)

  - A vulnerability was found in the Linux kernel's     kernel/events/core.c:perf_cpu_time_max_percent_handler(     ) function. Local privileged users could exploit this     flaw to cause a denial of service due to integer     overflow or possibly have unspecified other     impact.(CVE-2017-18255)

  - A flaw was found in the Linux kernel in the way a local     user could create keyrings for other users via keyctl     commands. This may allow an attacker to set unwanted     defaults, a denial of service, or possibly leak keyring     information between users.(CVE-2017-18270)

  - The mm subsystem in the Linux kernel through 4.10.10     does not properly enforce the CONFIG_STRICT_DEVMEM     protection mechanism, which allows local users to read     or write to kernel memory locations in the first     megabyte (and bypass slab-allocation access     restrictions) via an application that opens the     /dev/mem file, related to arch/x86/mm/init.c and     drivers/char/mem.c.(CVE-2017-7889)

  - The code in the drivers/scsi/libsas/sas_scsi_host.c     file in the Linux kernel allow a physically proximate     attacker to cause a memory leak in the ATA command     queue and, thus, denial of service by triggering     certain failure conditions.(CVE-2018-10021)

  - A flaw was found in the Linux kernel's client-side     implementation of the cifs protocol. This flaw allows     an attacker controlling the server to kernel panic a     client which has the CIFS server     mounted.(CVE-2018-1066)

  - A flaw was found in the alarm_timer_nsleep() function     in kernel/time/alarmtimer.c in the Linux kernel. The     ktime_add_safe() function is not used and an integer     overflow can happen causing an alarm not to fire or     possibly a denial-of-service if using a large relative     timeout.(CVE-2018-13053)

  - An issue was discovered in the XFS filesystem in     fs/xfs/libxfs/xfs_attr_leaf.c in the Linux kernel. A     NULL pointer dereference may occur for a corrupted xfs     image after xfs_da_shrink_inode() is called with a NULL     bp. This can lead to a system crash and a denial of     service.(CVE-2018-13094)

  - A flaw was found in the Linux Kernel in the     ucma_leave_multicast() function in     drivers/infiniband/core/ucma.c which allows access to a     certain data structure after freeing it in     ucma_process_join(). This allows an attacker to cause a     use-after-free bug and to induce kernel memory     corruption, leading to a system crash or other     unspecified impact. Due to the nature of the flaw,     privilege escalation cannot be fully ruled out,     although we believe it is unlikely.(CVE-2018-14734)

  - A race condition in the store_int_with_restart()     function in arch/x86/kernel/cpu/mcheck/mce.c in the     Linux kernel allows local users to cause a denial of     service (panic) by leveraging root access to write to     the check_interval file in a     /sys/devices/system/machinecheck/machinecheck (cpu     number) directory.(CVE-2018-7995)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update of the linux package has been released.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - rds: congestion updates can be missed when kernel low on     memory (Mukesh Kacker) [Orabug: 28425811]

  - net/rds: ib: Fix endless RNR Retries caused by memory     allocation failures (Venkat Venkatsubra) [Orabug:
    28127993]

  - net: rds: fix excess initialization of the recv SGEs     (Zhu Yanjun) [Orabug: 29004503]

  - xhci: fix usb2 resume timing and races. (Mathias Nyman)     [Orabug: 29028940]

  - xhci: Fix a race in usb2 LPM resume, blocking U3 for     usb2 devices (Mathias Nyman) [Orabug: 29028940]

  - userfaultfd: check VM_MAYWRITE was set after verifying     the uffd is registered (Andrea Arcangeli) [Orabug:
    29163750] (CVE-2018-18397)

  - userfaultfd: shmem/hugetlbfs: only allow to register     VM_MAYWRITE vmas (Andrea Arcangeli) [Orabug: 29163750]     (CVE-2018-18397)

  - x86/apic/x2apic: set affinity of a single interrupt to     one cpu (Jianchao Wang) [Orabug: 29196396]

  - xen/blkback: rework validate_io_op (Dongli Zhang)     [Orabug: 29199843]

  - xen/blkback: optimize validate_io_op to filter     BLKIF_OP_RESERVED_1 operation (Dongli Zhang) [Orabug:
    29199843]

  - xen/blkback: do not BUG for invalid blkif_request from     frontend (Dongli Zhang) [Orabug: 29199843]

  - net/rds: WARNING: at net/rds/recv.c:222     rds_recv_hs_exthdrs+0xf8/0x1e0 (Venkat Venkatsubra)     [Orabug: 29201779]

  - xen-netback: wake up xenvif_dealloc_kthread when it     should stop (Dongli Zhang) [Orabug: 29217927]

  - Revert 'xfs: remove nonblocking mode from     xfs_vm_writepage' (Wengang Wang) [Orabug: 29279692]

  - Revert 'xfs: remove xfs_cancel_ioend' (Wengang Wang)     [Orabug: 29279692]

  - Revert 'xfs: Introduce writeback context for writepages'     (Wengang Wang) [Orabug: 29279692]

  - Revert 'xfs: xfs_cluster_write is redundant' (Wengang     Wang) [Orabug: 29279692]

  - Revert 'xfs: factor mapping out of xfs_do_writepage'     (Wengang Wang) [Orabug: 29279692]

  - Revert 'xfs: don't chain ioends during writepage     submission' (Wengang Wang) [Orabug: 29279692]

  - mstflint: Fix coding style issues - left with     LINUX_VERSION_CODE (Idan Mehalel) [Orabug: 28878697]

  - mstflint: Fix coding-style issues (Idan Mehalel)     [Orabug: 28878697]

  - mstflint: Fix errors found with checkpatch script (Idan     Mehalel) [Orabug: 28878697]

  - Added support for 5th Gen devices in Secure Boot module     and mtcr (Adham Masarwah) [Orabug: 28878697]

  - Fix typos in mst_kernel (Adham Masarwah) [Orabug:
    28878697]

  - bnxt_en: Report PCIe link properties with     pcie_print_link_status (Brian Maly) [Orabug: 28942099]

  - selinux: Perform both commoncap and selinux xattr checks     (Eric W. Biederman) [Orabug: 28951521]

  - Introduce v3 namespaced file capabilities (Serge E.
    Hallyn) [Orabug: 28951521]

  - rds: ib: Use a delay when reconnecting to the very same     IP address (H&aring kon Bugge) [Orabug: 29138813]

  - Change mincore to count 'mapped' pages rather than     'cached' pages (Linus Torvalds) [Orabug: 29187415]     (CVE-2019-5489)

  - NFSD: Set the attributes used to store the verifier for     EXCLUSIVE4_1 (Kinglong Mee) [Orabug: 29204157]

  - ext4: update i_disksize when new eof exceeds it (Shan     Hai) [Orabug: 28940828]

  - ext4: update i_disksize if direct write past ondisk size     (Eryu Guan) [Orabug: 28940828]

  - ext4: protect i_disksize update by i_data_sem in direct     write path (Eryu Guan) [Orabug: 28940828]

  - ALSA: usb-audio: Fix UAF decrement if card has no live     interfaces in card.c (Hui Peng) [Orabug: 29042981]     (CVE-2018-19824)

  - ALSA: usb-audio: Replace probing flag with active     refcount (Takashi Iwai) [Orabug: 29042981]     (CVE-2018-19824)

  - ALSA: usb-audio: Avoid nested autoresume calls (Takashi     Iwai) [Orabug: 29042981] (CVE-2018-19824)

  - ext4: validate that metadata blocks do not overlap     superblock (Theodore Ts'o) [Orabug: 29114440]     (CVE-2018-1094)

  - ext4: update inline int ext4_has_metadata_csum(struct     super_block *sb) (John Donnelly) [Orabug: 29114440]     (CVE-2018-1094)

  - ext4: always initialize the crc32c checksum driver     (Theodore Ts'o) [Orabug: 29114440] (CVE-2018-1094)     (CVE-2018-1094)

  - Revert 'bnxt_en: Reduce default rings on multi-port     cards.' (Brian Maly) [Orabug: 28687746]

  - mlx4_core: Disable P_Key Violation Traps (H&aring kon     Bugge) [Orabug: 27693633]

  - rds: RDS connection does not reconnect after CQ access     violation error (Venkat Venkatsubra) [Orabug: 28733324]

  - KVM/SVM: Allow direct access to MSR_IA32_SPEC_CTRL     (KarimAllah Ahmed) [Orabug: 28069548]

  - KVM/VMX: Allow direct access to MSR_IA32_SPEC_CTRL -     reloaded (Mihai Carabas) [Orabug: 28069548]

  - KVM/x86: Add IBPB support (Ashok Raj) [Orabug: 28069548]

  - KVM: x86: pass host_initiated to functions that read     MSRs (Paolo Bonzini) [Orabug: 28069548]

  - KVM: VMX: make MSR bitmaps per-VCPU (Paolo Bonzini)     [Orabug: 28069548]

  - KVM: VMX: introduce alloc_loaded_vmcs (Paolo Bonzini)     [Orabug: 28069548]

  - KVM: nVMX: Eliminate vmcs02 pool (Jim Mattson) [Orabug:
    28069548]

  - KVM: nVMX: fix msr bitmaps to prevent L2 from accessing     L0 x2APIC (Radim Kr&#x10D m&aacute &#x159 ) [Orabug:
    28069548]

  - ocfs2: don't clear bh uptodate for block read (Junxiao     Bi) [Orabug: 28762940]

  - ocfs2: clear journal dirty flag after shutdown journal     (Junxiao Bi) [Orabug: 28924775]

  - ocfs2: fix panic due to unrecovered local alloc (Junxiao     Bi) [Orabug: 28924775]

  - net: rds: fix rds_ib_sysctl_max_recv_allocation error     (Zhu Yanjun) [Orabug: 28947481]

  - x86/speculation: Always disable IBRS in     disable_ibrs_and_friends (Alejandro Jimenez) [Orabug:
    29139710]

  - pinctrl: amd: Use devm_pinctrl_register for pinctrl     registration (Laxman Dewangan) [Orabug: 27539246]     (CVE-2017-18174)

  - mlock: fix mlock count can not decrease in race     condition (Yisheng Xie) [Orabug: 27677611]     (CVE-2017-18221)

  - perf/core: Fix the perf_cpu_time_max_percent check (Tan     Xiaojun) [Orabug: 27823815] (CVE-2017-18255)

  - x86/microcode/intel: Fix a wrong assignment of revision     in _save_mc (Zhenzhong Duan) [Orabug: 28190263]

  - mm: cma: fix incorrect type conversion for size during     dma allocation (Rohit Vaswani) [Orabug: 28407826]     (CVE-2017-9725)

  - x86/speculation: Make enhanced IBRS the default spectre     v2 mitigation (Alejandro Jimenez) [Orabug: 28474851]

  - x86/speculation: Enable enhanced IBRS usage (Alejandro     Jimenez) [Orabug: 28474851]

  - x86/speculation: functions for supporting enhanced IBRS     (Alejandro Jimenez) [Orabug: 28474851]

  - xen/blkback: fix disconnect while I/Os in flight     (Juergen Gross) [Orabug: 28744234]

  - mlx4_vnic: use the mlid while calling ib_detach_mcast     (aru kolappan) [Orabug: 29029705]

  - ext4: fail ext4_iget for root directory if unallocated     (Theodore Ts'o) [Orabug: 29048557] (CVE-2018-1092)     (CVE-2018-1092)

  - Bluetooth: hidp: buffer overflow in hidp_process_report     (Mark Salyzyn) [Orabug: 29121215] (CVE-2018-9363)     (CVE-2018-9363)

  - HID: debug: check length before copy_to_user (Daniel     Rosenberg) [Orabug: 29128165] (CVE-2018-9516)

  - x86/MCE: Serialize sysfs changes (Seunghun Han) [Orabug:
    29149888] (CVE-2018-7995)

  - Input: i8042 - fix crash at boot time (Chen Hong)     [Orabug: 29152328] (CVE-2017-18079)

  - base/memory, hotplug: fix a kernel oops in     show_valid_zones (Toshi Kani) [Orabug: 29050538]

  - mm/memory_hotplug.c: check start_pfn in     test_pages_in_a_zone (Toshi Kani) [Orabug: 29050538]

  - drivers/base/memory.c: prohibit offlining of memory     blocks with missing sections (Seth Jennings) [Orabug:
    29050538]

  - mm: Check if section present during memory block     (un)registering (Yinghai Lu) [Orabug: 29050538]

  - hugetlb: take PMD sharing into account when flushing     tlb/caches (Mike Kravetz) [Orabug: 28951854]

  - mm: migration: fix migration of huge PMD shared pages     (Mike Kravetz) [Orabug: 28951854]

  - hugetlbfs: use truncate mutex to prevent pmd sharing     race (Mike Kravetz) [Orabug: 28896255]

  - rds: ib: Improve tracing during failover/back     (H&aring kon Bugge) [Orabug: 28860366]

  - rds: ib: Remove superfluous add of address on fail-back     device (H&aring kon Bugge) [Orabug: 28860366]

  - libiscsi: Fix NULL pointer dereference in     iscsi_eh_session_reset (Fred Herard) [Orabug: 28946207]

  - wil6210: missing length check in wmi_set_ie (Lior David)     [Orabug: 28951265] (CVE-2018-5848)

  - netfilter: xt_osf: Add missing permission checks (Kevin     Cernekee) [Orabug: 29037831] (CVE-2017-17450)

  - x86/speculation: Fix bad argument to rdmsrl in     cpu_set_bug_bits (Alejandro Jimenez) [Orabug: 29044805]

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4315 advisory.

    - pinctrl: amd: Use devm_pinctrl_register() for pinctrl registration (Laxman Dewangan)  [Orabug: 27539246]     {CVE-2017-18174}
    - mlock: fix mlock count can not decrease in race condition (Yisheng Xie)  [Orabug: 27677611]     {CVE-2017-18221}
    - perf/core: Fix the perf_cpu_time_max_percent check (Tan Xiaojun)  [Orabug: 27823815]  {CVE-2017-18255}
    - mm: cma: fix incorrect type conversion for size during dma allocation (Rohit Vaswani)  [Orabug:
    28407826]  {CVE-2017-9725}
    - ext4: fail ext4_iget for root directory if unallocated (Theodore Ts'o)  [Orabug: 29048557]     {CVE-2018-1092} {CVE-2018-1092}
    - Bluetooth: hidp: buffer overflow in hidp_process_report (Mark Salyzyn)  [Orabug: 29121215]     {CVE-2018-9363} {CVE-2018-9363}
    - HID: debug: check length before copy_to_user() (Daniel Rosenberg)  [Orabug: 29128165]  {CVE-2018-9516}
    - x86/MCE: Serialize sysfs changes (Seunghun Han)  [Orabug: 29149888]  {CVE-2018-7995}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A vulnerability was found in the Linux kernel's     kernel/events/core.c:perf_cpu_time_max_percent_handler(     ) function. Local privileged users could exploit this     flaw to cause a denial of service due to integer     overflow or possibly have unspecified other     impact.(CVE-2017-18255)

  - The code in the drivers/scsi/libsas/sas_scsi_host.c     file in the Linux kernel allow a physically proximate     attacker to cause a memory leak in the ATA command     queue and, thus, denial of service by triggering     certain failure conditions.(CVE-2018-10021)

  - The kernel_wait4 function in kernel/exit.c in the Linux     kernel, when an unspecified architecture and compiler     is used, might allow local users to cause a denial of     service by triggering an attempted use of the -INT_MIN     value.(CVE-2018-10087)

  - A an integer overflow vulnerability was discovered in     the Linux kernel, from version 3.4 through 4.15, in the     drivers/gpu/drm/udl/udl_fb.c:udl_fb_mmap() function. An     attacker with access to the udldrmfb driver could     exploit this to obtain full read and write permissions     on kernel physical pages, resulting in a code execution     in kernel space.(CVE-2018-8781)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A flaw was found in the Linux kernel's client-side     implementation of the cifs protocol. This flaw allows     an attacker controlling the server to kernel panic a     client which has the CIFS server     mounted.(CVE-2018-1066)

  - In the Linux Kernel before version 4.15.8, 4.14.25,     4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the     '_sctp_make_chunk()' function     (net/sctp/sm_make_chunk.c) when handling SCTP packets     length can be exploited to cause a kernel     crash.(CVE-2018-5803)

  - Memory leak in the sas_smp_get_phy_events function in     drivers/scsi/libsas/sas_expander.c in the Linux kernel     allows local users to cause a denial of service (kernel     memory exhaustion) via multiple read accesses to files     in the /sys/class/sas_phy directory.(CVE-2018-7757)

  - A race condition in the store_int_with_restart()     function in arch/x86/kernel/cpu/mcheck/mce.c in the     Linux kernel allows local users to cause a denial of     service (panic) by leveraging root access to write to     the check_interval file in a     /sys/devices/system/machinecheck/machinecheck (cpu     number) directory.(CVE-2018-7995)

  - ALSA sequencer core initializes the event pool on     demand by invoking snd_seq_pool_init() when the first     write happens and the pool is empty. A user can reset     the pool size manually via ioctl concurrently, and this     may lead to UAF or out-of-bound access.(CVE-2018-7566)

  - A flaw was found in the Linux kernel's implementation     of 32-bit syscall interface for bridging. This allowed     a privileged user to arbitrarily write to a limited     range of kernel memory.(CVE-2018-1068)

  - A vulnerability was found in the Linux kernel's     kernel/events/core.c:perf_cpu_time_max_percent_handler(     ) function. Local privileged users could exploit this     flaw to cause a denial of service due to integer     overflow or possibly have unspecified other     impact.(CVE-2017-18255)

  - The code in the drivers/scsi/libsas/sas_scsi_host.c     file in the Linux kernel allow a physically proximate     attacker to cause a memory leak in the ATA command     queue and, thus, denial of service by triggering     certain failure conditions.(CVE-2018-10021)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3754-1 advisory.

    Ralf Spenneberg discovered that the ext4 implementation in the Linux kernel did not properly validate meta     block groups. An attacker with physical access could use this to specially craft an ext4 image that causes     a denial of service (system crash). (CVE-2016-10208)

    It was discovered that an information disclosure vulnerability existed in the ACPI implementation of the     Linux kernel. A local attacker could use this to expose sensitive information (kernel memory addresses).
    (CVE-2017-11472)

    It was discovered that a buffer overflow existed in the ACPI table parsing implementation in the Linux     kernel. A local attacker could use this to construct a malicious ACPI table that, when loaded, caused a     denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-11473)

    It was discovered that the generic SCSI driver in the Linux kernel did not properly initialize data     returned to user space in some situations. A local attacker could use this to expose sensitive information     (kernel memory). (CVE-2017-14991)

    It was discovered that a race condition existed in the packet fanout implementation in the Linux kernel. A     local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2017-15649)

    Andrey Konovalov discovered that the Ultra Wide Band driver in the Linux kernel did not properly check for     an error condition. A physically proximate attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2017-16526)

    Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel contained a use-after-free     vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2017-16527)

    Andrey Konovalov discovered that the ALSA subsystem in the Linux kernel did not properly validate USB     audio buffer descriptors. A physically proximate attacker could use this cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2017-16529)

    Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB     interface association descriptors. A physically proximate attacker could use this to cause a denial of     service (system crash). (CVE-2017-16531)

    Andrey Konovalov discovered that the usbtest device driver in the Linux kernel did not properly validate     endpoint metadata. A physically proximate attacker could use this to cause a denial of service (system     crash). (CVE-2017-16532)

    Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB HID     descriptors. A physically proximate attacker could use this to cause a denial of service (system crash).
    (CVE-2017-16533)

    Andrey Konovalov discovered that the USB subsystem in the Linux kernel did not properly validate USB BOS     metadata. A physically proximate attacker could use this to cause a denial of service (system crash).
    (CVE-2017-16535)

    Andrey Konovalov discovered that the Conexant cx231xx USB video capture driver in the Linux kernel did not     properly validate interface descriptors. A physically proximate attacker could use this to cause a denial     of service (system crash). (CVE-2017-16536)

    Andrey Konovalov discovered that the SoundGraph iMON USB driver in the Linux kernel did not properly     validate device metadata. A physically proximate attacker could use this to cause a denial of service     (system crash). (CVE-2017-16537)

    It was discovered that the DM04/QQBOX USB driver in the Linux kernel did not properly handle device     attachment and warm-start. A physically proximate attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2017-16538)

    Andrey Konovalov discovered an out-of-bounds read in the GTCO digitizer USB driver for the Linux kernel. A     physically proximate attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2017-16643)

    Andrey Konovalov discovered that the video4linux driver for Hauppauge HD PVR USB devices in the Linux     kernel did not properly handle some error conditions. A physically proximate attacker could use this to     cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16644)

    Andrey Konovalov discovered that the IMS Passenger Control Unit USB driver in the Linux kernel did not     properly validate device descriptors. A physically proximate attacker could use this to cause a denial of     service (system crash). (CVE-2017-16645)

    Andrey Konovalov discovered that the QMI WWAN USB driver did not properly validate device descriptors. A     physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-16650)

    It was discovered that the USB Virtual Host Controller Interface (VHCI) driver in the Linux kernel     contained an information disclosure vulnerability. A physically proximate attacker could use this to     expose sensitive information (kernel memory). (CVE-2017-16911)

    It was discovered that the USB over IP implementation in the Linux kernel did not validate endpoint     numbers. A remote attacker could use this to cause a denial of service (system crash). (CVE-2017-16912)

    It was discovered that the USB over IP implementation in the Linux kernel did not properly validate     CMD_SUBMIT packets. A remote attacker could use this to cause a denial of service (excessive memory     consumption). (CVE-2017-16913)

    It was discovered that the USB over IP implementation in the Linux kernel contained a NULL pointer     dereference error. A remote attacker could use this to cause a denial of service (system crash).
    (CVE-2017-16914)

    It was discovered that the core USB subsystem in the Linux kernel did not validate the number of     configurations and interfaces in a device. A physically proximate attacker could use this to cause a     denial of service (system crash). (CVE-2017-17558)

    It was discovered that an integer overflow existed in the perf subsystem of the Linux kernel. A local     attacker could use this to cause a denial of service (system crash). (CVE-2017-18255)

    It was discovered that the keyring subsystem in the Linux kernel did not properly prevent a user from     creating keyrings for other users. A local attacker could use this cause a denial of service or expose     sensitive information. (CVE-2017-18270)

    Andy Lutomirski and Willy Tarreau discovered that the KVM implementation in the Linux kernel did not     properly emulate instructions on the SS segment register. A local attacker in a guest virtual machine     could use this to cause a denial of service (guest OS crash) or possibly gain administrative privileges in     the guest OS. (CVE-2017-2583)

    Dmitry Vyukov discovered that the KVM implementation in the Linux kernel improperly emulated certain     instructions. A local attacker could use this to obtain sensitive information (kernel memory).
    (CVE-2017-2584)

    It was discovered that the KLSI KL5KUSB105 serial-to-USB device driver in the Linux kernel did not     properly initialize memory related to logging. A local attacker could use this to expose sensitive     information (kernel memory). (CVE-2017-5549)

    Andrey Konovalov discovered an out-of-bounds access in the IPv6 Generic Routing Encapsulation (GRE)     tunneling implementation in the Linux kernel. An attacker could use this to possibly expose sensitive     information. (CVE-2017-5897)

    Andrey Konovalov discovered that the LLC subsytem in the Linux kernel did not properly set up a destructor     in certain situations. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2017-6345)

    Dmitry Vyukov discovered race conditions in the Infrared (IrDA) subsystem in the Linux kernel. A local     attacker could use this to cause a denial of service (deadlock). (CVE-2017-6348)

    Andy Lutomirski discovered that the KVM implementation in the Linux kernel was vulnerable to a debug     exception error when single-stepping through a syscall. A local attacker in a non-Linux guest vm could     possibly use this to gain administrative privileges in the guest vm. (CVE-2017-7518)

    Tuomas Haanp and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux     kernel did not properly handle certain long RPC replies. A remote attacker could use this to cause a     denial of service (system crash). (CVE-2017-7645)

    Pengfei Wang discovered that a race condition existed in the NXP SAA7164 TV Decoder driver for the Linux     kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute     arbitrary code. (CVE-2017-8831)

    Pengfei Wang discovered that the Turtle Beach MultiSound audio device driver in the Linux kernel contained     race conditions when fetching from the ring-buffer. A local attacker could use this to cause a denial of     service (infinite loop). (CVE-2017-9984, CVE-2017-9985)

    It was discovered that the wait4() system call in the Linux kernel did not properly validate its arguments     in some situations. A local attacker could possibly use this to cause a denial of service.
    (CVE-2018-10087)

    It was discovered that the kill() system call implementation in the Linux kernel did not properly validate     its arguments in some situations. A local attacker could possibly use this to cause a denial of service.
    (CVE-2018-10124)

    Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly validate     meta-data information. An attacker could use this to construct a malicious xfs image that, when mounted,     could cause a denial of service (system crash). (CVE-2018-10323)

    Zhong Jiang discovered that a use-after-free vulnerability existed in the NUMA memory policy     implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2018-10675)

    Wen Xu discovered that a buffer overflow existed in the ext4 filesystem implementation in the Linux     kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a     denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10877)

    Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly keep meta-     data information consistent in some situations. An attacker could use this to construct a malicious ext4     image that, when mounted, could cause a denial of service (system crash). (CVE-2018-10881)

    Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle     corrupted meta data in some situations. An attacker could use this to specially craft an ext4 filesystem     that caused a denial of service (system crash) when mounted. (CVE-2018-1092)

    Wen Xu discovered that the ext4 filesystem implementation in the Linux kernel did not properly handle     corrupted meta data in some situations. An attacker could use this to specially craft an ext4 filesystem     that caused a denial of service (system crash) when mounted. (CVE-2018-1093)

    It was discovered that the cdrom driver in the Linux kernel contained an incorrect bounds check. A local     attacker could use this to expose sensitive information (kernel memory). (CVE-2018-10940)

    Shankara Pailoor discovered that the JFS filesystem implementation in the Linux kernel contained a buffer     overflow when handling extended attributes. A local attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2018-12233)

    Wen Xu discovered that the XFS filesystem implementation in the Linux kernel did not properly handle an     error condition with a corrupted xfs image. An attacker could use this to construct a malicious xfs image     that, when mounted, could cause a denial of service (system crash). (CVE-2018-13094)

    It was discovered that the Linux kernel did not properly handle setgid file creation when performed by a     non-member of the group. A local attacker could use this to gain elevated privileges. (CVE-2018-13405)

    Silvio Cesare discovered that the generic VESA frame buffer driver in the Linux kernel contained an     integer overflow. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2018-13406)

    Daniel Jiang discovered that a race condition existed in the ipv4 ping socket implementation in the Linux     kernel. A local privileged attacker could use this to cause a denial of service (system crash).
    (CVE-2017-2671)

    It was discovered that an information leak existed in the generic SCSI driver in the Linux kernel. A local     attacker could use this to expose sensitive information (kernel memory). (CVE-2018-1000204)

    It was discovered that a memory leak existed in the Serial Attached SCSI (SAS) implementation in the Linux     kernel. A physically proximate attacker could use this to cause a denial of service (memory exhaustion).
    (CVE-2018-10021)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Linux 4.9 has been packaged for Debian 8 as linux-4.9. This provides a supported upgrade path for systems that currently use kernel packages from the 'jessie-backports' suite.

There is no need to upgrade systems using Linux 3.16, as that kernel version will also continue to be supported in the LTS period.

This backport does not include the following binary packages :

hyperv-daemons libcpupower1 libcpupower-dev libusbip-dev linux-compiler-gcc-4.9-x86 linux-cpupower linux-libc-dev usbip

Older versions of most of those are built from other source packages in Debian 8.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

CVE-2017-5753

Further instances of code that was vulnerable to Spectre variant 1 (bounds-check bypass) have been mitigated.

CVE-2017-18255

It was discovered that the performance events subsystem did not properly validate the value of the kernel.perf_cpu_time_max_percent sysctl. Setting a large value could have an unspecified security impact. However, only a privileged user can set this sysctl.

CVE-2018-1118

The syzbot software found that the vhost driver did not initialise message buffers which would later be read by user processes. A user with access to the /dev/vhost-net device could use this to read sensitive information from the kernel or other users' processes.

CVE-2018-1120

Qualys reported that a user able to mount FUSE filesystems can create a process such that when another process attempting to read its command line will be blocked for an arbitrarily long time. This could be used for denial of service, or to aid in exploiting a race condition in the other program.

CVE-2018-1130

The syzbot software found that the DCCP implementation of sendmsg() does not check the socket state, potentially leading to a NULL pointer dereference. A local user could use this to cause a denial of service (crash). 

CVE-2018-3639

Multiple researchers have discovered that Speculative Store Bypass (SSB), a feature implemented in many processors, could be used to read sensitive information from another context. In particular, code in a software sandbox may be able to read sensitive information from outside the sandbox. This issue is also known as Spectre variant 4.

This update allows the issue to be mitigated on some x86 processors by disabling SSB. This requires an update to the processor's microcode, which is non-free. It may be included in an update to the system BIOS or UEFI firmware, or in a future update to the intel-microcode or amd64-microcode packages.

Disabling SSB can reduce performance significantly, so by default it is only done in tasks that use the seccomp feature. Applications that require this mitigation should request it explicitly through the prctl() system call. Users can control where the mitigation is enabled with the spec_store_bypass_disable kernel parameter.

CVE-2018-5814

Jakub Jirasek reported race conditions in the USB/IP host driver. A malicious client could use this to cause a denial of service (crash or memory corruption), and possibly to execute code, on a USB/IP server.

CVE-2018-10021

A physically present attacker who unplugs a SAS cable can cause a denial of service (memory leak and WARN).

CVE-2018-10087, CVE-2018-10124

zhongjiang found that the wait4() and kill() system call implementations did not check for the invalid pid value of INT_MIN. If a user passed this value, the behaviour of the code was formally undefined and might have had a security impact.

CVE-2018-10853

Andy Lutomirski and Mika Penttil&auml; reported that KVM for x86 processors did not perform a necessary privilege check when emulating certain instructions. This could be used by an unprivileged user in a guest VM to escalate their privileges within the guest.

CVE-2018-10876, CVE-2018-10877, CVE-2018-10878, CVE-2018-10879, CVE-2018-10880, CVE-2018-10881, CVE-2018-10882, CVE-2018-10883

Wen Xu at SSLab, Gatech, reported that crafted ext4 filesystem images could trigger a crash or memory corruption. A local user able to mount arbitrary filesystems, or an attacker providing filesystems to be mounted, could use this for denial of service or possibly for privilege escalation.

CVE-2018-10940

Dan Carpenter reported that the optical disc driver (cdrom) does not correctly validate the parameter to the CDROM_MEDIA_CHANGED ioctl. A user with access to a cdrom device could use this to cause a denial of service (crash).

CVE-2018-11506

Piotr Gabriel Kosinski and Daniel Shapira reported that the SCSI optical disc driver (sr) did not allocate a sufficiently large buffer for sense data. A user with access to a SCSI optical disc device that can produce more than 64 bytes of sense data could use this to cause a denial of service (crash or memory corruption), and possibly for privilege escalation.

CVE-2018-12233

Shankara Pailoor reported that a crafted JFS filesystem image could trigger a denial of service (memory corruption). This could possibly also be used for privilege escalation.

CVE-2018-1000204

The syzbot software found that the SCSI generic driver (sg) would in some circumstances allow reading data from uninitialised buffers, which could include sensitive information from the kernel or other tasks. However, only privileged users with the CAP_SYS_ADMIN or CAP_SYS_RAWIO capability were allowed to do this, so this has little or no security impact.

For Debian 8 'Jessie', these problems have been fixed in version 4.9.110-1~deb8u1. This update additionally fixes Debian bugs #860900, #872907, #892057, #896775, #897590, and #898137; and includes many more bug fixes from stable updates 4.9.89-4.9.110 inclusive.

We recommend that you upgrade your linux-4.9 packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3696-2 advisory.

    USN-3696-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the     corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu     14.04 LTS.

    It was discovered that an integer overflow existed in the perf subsystem of the Linux kernel. A local     attacker could use this to cause a denial of service (system crash). (CVE-2017-18255)

    Wei Fang discovered an integer overflow in the F2FS filesystem implementation in the Linux kernel. A local     attacker could use this to cause a denial of service. (CVE-2017-18257)

    It was discovered that an information leak existed in the generic SCSI driver in the Linux kernel. A local     attacker could use this to expose sensitive information (kernel memory). (CVE-2018-1000204)

    It was discovered that the wait4() system call in the Linux kernel did not properly validate its arguments     in some situations. A local attacker could possibly use this to cause a denial of service.
    (CVE-2018-10087)

    It was discovered that the kill() system call implementation in the Linux kernel did not properly validate     its arguments in some situations. A local attacker could possibly use this to cause a denial of service.
    (CVE-2018-10124)

    Julian Stecklina and Thomas Prescher discovered that FPU register states (such as MMX, SSE, and AVX     registers) which are lazily restored are potentially vulnerable to a side channel attack. A local attacker     could use this to expose sensitive information. (CVE-2018-3665)

    Jakub Jirasek discovered that multiple use-after-errors existed in the USB/IP implementation in the Linux     kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute     arbitrary code. (CVE-2018-5814)

    It was discovered that an information leak vulnerability existed in the floppy driver in the Linux kernel.
    A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-7755)

    Seunghun Han discovered an information leak in the ACPI handling code in the Linux kernel when handling     early termination of ACPI table loading. A local attacker could use this to expose sensitive informal     (kernel address locations). (CVE-2017-13695)

    It was discovered that a memory leak existed in the Serial Attached SCSI (SAS) implementation in the Linux     kernel. A physically proximate attacker could use this to cause a denial of service (memory exhaustion).
    (CVE-2018-10021)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3696-1 advisory.

    It was discovered that an integer overflow existed in the perf subsystem of the Linux kernel. A local     attacker could use this to cause a denial of service (system crash). (CVE-2017-18255)

    Wei Fang discovered an integer overflow in the F2FS filesystem implementation in the Linux kernel. A local     attacker could use this to cause a denial of service. (CVE-2017-18257)

    It was discovered that an information leak existed in the generic SCSI driver in the Linux kernel. A local     attacker could use this to expose sensitive information (kernel memory). (CVE-2018-1000204)

    It was discovered that the wait4() system call in the Linux kernel did not properly validate its arguments     in some situations. A local attacker could possibly use this to cause a denial of service.
    (CVE-2018-10087)

    It was discovered that the kill() system call implementation in the Linux kernel did not properly validate     its arguments in some situations. A local attacker could possibly use this to cause a denial of service.
    (CVE-2018-10124)

    Julian Stecklina and Thomas Prescher discovered that FPU register states (such as MMX, SSE, and AVX     registers) which are lazily restored are potentially vulnerable to a side channel attack. A local attacker     could use this to expose sensitive information. (CVE-2018-3665)

    Jakub Jirasek discovered that multiple use-after-free errors existed in the USB/IP implementation in the     Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2018-5814)

    It was discovered that an information leak vulnerability existed in the floppy driver in the Linux kernel.
    A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-7755)

    Seunghun Han discovered an information leak in the ACPI handling code in the Linux kernel when handling     early termination of ACPI table loading. A local attacker could use this to expose sensitive informal     (kernel address locations). (CVE-2017-13695)

    It was discovered that a memory leak existed in the Serial Attached SCSI (SAS) implementation in the Linux     kernel. A physically proximate attacker could use this to cause a denial of service (memory exhaustion).
    (CVE-2018-10021)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - A vulnerability was found in the Linux kernel's     kernel/events/core.c:perf_cpu_time_max_percent_handler(     ) function. Local privileged users could exploit this     flaw to cause a denial of service due to integer     overflow or possibly have unspecified other     impact.(CVE-2017-18255)

  - The code in the drivers/scsi/libsas/sas_scsi_host.c     file in the Linux kernel allow a physically proximate     attacker to cause a memory leak in the ATA command     queue and, thus, denial of service by triggering     certain failure conditions.(CVE-2018-10021)

  - The kernel_wait4 function in kernel/exit.c in the Linux     kernel, when an unspecified architecture and compiler     is used, might allow local users to cause a denial of     service by triggering an attempted use of the -INT_MIN     value.(CVE-2018-10087)

  - A an integer overflow vulnerability was discovered in     the Linux kernel, from version 3.4 through 4.15, in the     drivers/gpu/drm/udl/udl_fb.c:udl_fb_mmap() function. An     attacker with access to the udldrmfb driver could     exploit this to obtain full read and write permissions     on kernel physical pages, resulting in a code execution     in kernel space.(CVE-2018-8781)

  - An address corruption flaw was discovered in the Linux     kernel built with hardware breakpoint     (CONFIG_HAVE_HW_BREAKPOINT) support. While modifying a     h/w breakpoint via 'modify_user_hw_breakpoint' routine,     an unprivileged user/process could use this flaw to     crash the system kernel resulting in DoS OR to     potentially escalate privileges on a the     system.(CVE-2018-1000199)

  - An industry-wide issue was found in the way many modern     microprocessor designs have implemented speculative     execution of Load i1/4+ Store instructions (a commonly     used performance optimization). It relies on the     presence of a precisely-defined instruction sequence in     the privileged code as well as the fact that memory     read from address to which a recent memory write has     occurred may see an older value and subsequently cause     an update into the microprocessor's data cache even for     speculatively executed instructions that never actually     commit (retire). As a result, an unprivileged attacker     could use this flaw to read privileged memory by     conducting targeted cache side-channel     attacks.(CVE-2018-3639)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - ALSA sequencer core initializes the event pool on     demand by invoking snd_seq_pool_init() when the first     write happens and the pool is empty. A user can reset     the pool size manually via ioctl concurrently, and this     may lead to UAF or out-of-bound access.(CVE-2018-7566)

  - The do_get_mempolicy() function in mm/mempolicy.c in     the Linux kernel allows local users to hit a     use-after-free bug via crafted system calls and thus     cause a denial of service (DoS) or possibly have     unspecified other impact. Due to the nature of the     flaw, privilege escalation cannot be fully ruled     out.(CVE-2018-10675)

  - The Linux kernel has an undefined behavior when an     argument of INT_MIN is passed to the     kernel/signal.c:kill_something_info() function. A local     attacker may be able to exploit this to cause a denial     of service.(CVE-2018-10124)

  - A an integer overflow vulnerability was discovered in     the Linux kernel, from version 3.4 through 4.15, in the     drivers/gpu/drm/udl/udl_fb.c:udl_fb_mmap() function. An     attacker with access to the udldrmfb driver could     exploit this to obtain full read and write permissions     on kernel physical pages, resulting in a code execution     in kernel space.(CVE-2018-8781)

  - The code in the drivers/scsi/libsas/sas_scsi_host.c     file in the Linux kernel allow a physically proximate     attacker to cause a memory leak in the ATA command     queue and, thus, denial of service by triggering     certain failure conditions.(CVE-2018-10021)

  - A flaw was found in the Linux kernel's implementation     of 32-bit syscall interface for bridging. This allowed     a privileged user to arbitrarily write to a limited     range of kernel memory.(CVE-2018-1068)

  - A vulnerability was found in the Linux kernel's     kernel/events/core.c:perf_cpu_time_max_percent_handler(     ) function. Local privileged users could exploit this     flaw to cause a denial of service due to integer     overflow or possibly have unspecified other     impact.(CVE-2017-18255)

  - The kernel_wait4 function in kernel/exit.c in the Linux     kernel, when an unspecified architecture and compiler     is used, might allow local users to cause a denial of     service by triggering an attempted use of the -INT_MIN     value.(CVE-2018-10087)

  - A null pointer dereference in dccp_write_xmit()     function in net/dccp/output.c in the Linux kernel     allows a local user to cause a denial of service by a     number of certain crafted system calls.(CVE-2018-1130)

  - An address corruption flaw was discovered in the Linux     kernel built with hardware breakpoint     (CONFIG_HAVE_HW_BREAKPOINT) support. While modifying a     h/w breakpoint via 'modify_user_hw_breakpoint' routine,     an unprivileged user/process could use this flaw to     crash the system kernel resulting in DoS OR to     potentially escalate privileges on a the     system.(CVE-2018-1000199)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
136782	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1275-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)	Nessus	SuSE Local Security Checks	critical
136661	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1255-1)	Nessus	SuSE Local Security Checks	critical
124825	EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1502)	Nessus	Huawei Local Security Checks	high
124800	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1476)	Nessus	Huawei Local Security Checks	high
122414	EulerOS 2.0 SP2 : kernel (EulerOS-SA-2019-1062)	Nessus	Huawei Local Security Checks	high
121944	Photon OS 2.0: Linux PHSA-2018-2.0-0042	Nessus	PhotonOS Local Security Checks	high
121839	Photon OS 1.0: Linux PHSA-2018-1.0-0133	Nessus	PhotonOS Local Security Checks	high
121605	OracleVM 3.4 : Unbreakable / etc (OVMSA-2019-0002)	Nessus	OracleVM Local Security Checks	critical
120976	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2019-4315)	Nessus	Oracle Linux Local Security Checks	critical
117570	EulerOS Virtualization 2.5.1 : kernel (EulerOS-SA-2018-1261)	Nessus	Huawei Local Security Checks	high
117569	EulerOS Virtualization 2.5.0 : kernel (EulerOS-SA-2018-1260)	Nessus	Huawei Local Security Checks	high
112113	Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-3754-1)	Nessus	Ubuntu Local Security Checks	critical
111165	Debian DLA-1423-1 : linux-4.9 new package (Spectre)	Nessus	Debian Local Security Checks	high
110897	Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3696-2)	Nessus	Ubuntu Local Security Checks	high
110896	Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-3696-1)	Nessus	Ubuntu Local Security Checks	high
110860	EulerOS 2.0 SP3 : kernel (EulerOS-SA-2018-1196)	Nessus	Huawei Local Security Checks	high
110136	EulerOS 2.0 SP1 : kernel (EulerOS-SA-2018-1132)	Nessus	Huawei Local Security Checks	high

Detections

Analytics

CVE-2017-18255

high

Tenable Plugins

critical

critical

high

high

high

high

high

critical

critical

high

high

critical

high

high

high

high

high