The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle variable but does not give it an initial value. If one attempts to create a GB surface, with a previously allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and is then later returned to user space, allowing local users to obtain sensitive information from uninitialized kernel memory via a crafted ioctl call.

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - kernel: out of bounds read in drivers/media/usb/dvb-usb/technisat-usb2.c (CVE-2019-15505)

  - kernel: buffer-overflow hardening in WiFi beacon validation code. (CVE-2019-16746)

  - block/scsi_ioctl.c in the Linux kernel through 3.8 does not properly consider the SCSI device class during     authorization of SCSI commands, which allows local users to bypass intended access restrictions via an     SG_IO ioctl call that leverages overlapping opcodes. (CVE-2012-4542)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The remote Redhat Enterprise Linux 6 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - kernel: Buffer overflow due to unbounded strcpy in ISDN I4L driver (CVE-2017-12762)

  - kernel: buffer-overflow hardening in WiFi beacon validation code. (CVE-2019-16746)

  - include/linux/init_task.h in the Linux kernel before 2.6.35 does not prevent signals with a process group     ID of zero from reaching the swapper process, which allows local users to cause a denial of service     (system crash) by leveraging access to this process group. (CVE-2010-5328)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

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

  - qla2xxx: disable target reset during link reset and     update version (Quinn Tran) [Orabug: 32095664] - scsi:
    qla2xxx: Fix early srb free on abort (Quinn Tran)     [Orabug: 32095664] - scsi: qla2xxx: Fix comment in     MODULE_PARM_DESC in qla2xxx (Masanari Iida) [Orabug:
    32095664] - scsi: qla2xxx: Enable Async TMF processing     [Orabug: 32095664] - qla2xxx: tweak debug message for     task management path (Quinn Tran) [Orabug: 32095664] -     scsi: qla2xxx: Fix hang when issuing nvme disconnect-all     in NPIV (Arun Easi) [Orabug: 32095664] - scsi: qla2xxx:
    Fix fabric scan hang (Quinn Tran) [Orabug: 32095664] -     scsi: qla2xxx: Do command completion on abort timeout     (Quinn Tran) [Orabug: 32095664] - scsi: qla2xxx: Fix     abort timeout race condition. (Quinn Tran) [Orabug:
    32095664] - scsi: qla2xxx: Fix race between switch cmd     completion and timeout (Quinn Tran) [Orabug: 32095664] -     scsi: qla2xxx: Add IOCB resource tracking (Quinn Tran)     [Orabug: 32095664] - scsi: qla2xxx:v2: Fix double     scsi_done for abort path (Quinn Tran) [Orabug: 32095664]
    - scsi: qla2xxx: v2 Fix a race condition between     aborting and completing a SCSI command (Bart Van Assche)     [Orabug: 32095664] - scsi: qla2xxx: Really fix     qla2xxx_eh_abort (Bart Van Assche) [Orabug: 32095664] -     scsi: qla2xxx: v2 Reject     EH_[abort|device_reset|target_request] (Quinn Tran)     [Orabug: 32095664] - scsi: qla2xxx: v2: Fix race     conditions in the code for aborting SCSI commands (Bart     Van Assche) [Orabug: 32095664]

  - IB/ipoib: Arm 'send_cq' to process completions in due     time (Gerd Rausch) [Orabug: 31512608]

  - block: Move part of bdi_destory to del_gendisk as     bdi_unregister. (Jan Kara) [Orabug: 32124131] - kernel:
    add panic_on_taint (Rafael Aquini) [Orabug: 32138039]

  - drm/vmwgfx: Make sure backup_handle is always valid     (Sinclair Yeh) [Orabug: 31352076] (CVE-2017-9605)

  - random32: move the pseudo-random 32-bit definitions to     prandom.h (Linus Torvalds) [Orabug: 31698086]     (CVE-2020-16166)

  - random32: remove net_rand_state from the latent entropy     gcc plugin (Linus Torvalds) [Orabug: 31698086]     (CVE-2020-16166)

  - random: fix circular include dependency on arm64 after     addition of percpu.h (Willy Tarreau) [Orabug: 31698086]     (CVE-2020-16166)

  - random32: update the net random state on interrupt and     activity (Willy Tarreau) [Orabug: 31698086]     (CVE-2020-16166)

  - x86/kvm: move kvm_load/put_guest_xcr0 into atomic     context (WANG Chao) [Orabug: 32021856] - kvm: x86: do     not leak guest xcr0 into host interrupt handlers (David     Matlack) [Orabug: 32021856]

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5962 advisory.

  - The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive     information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to     drivers/char/random.c and kernel/time/timer.c. (CVE-2020-16166)

  - The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in     drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle     variable but does not give it an initial value. If one attempts to create a GB surface, with a previously     allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and     is then later returned to user space, allowing local users to obtain sensitive information from     uninitialized kernel memory via a crafted ioctl call. (CVE-2017-9605)

Note that Nessus has not tested for this issue 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 where the     keyctl_set_reqkey_keyring() function leaks the thread     keyring. This allows an unprivileged local user to     exhaust kernel memory and thus cause a     DoS.(CVE-2017-7472)

  - A reference counter leak in Linux kernel in     ipxitf_ioctl function was found which results in a use     after free vulnerability that's triggerable from     unprivileged userspace when IPX interface is     configured.(CVE-2017-7487)

  - A vulnerability was found in the Linux kernel where     filesystems mounted with data=ordered mode may allow an     attacker to read stale data from recently allocated     blocks in new files after a system 'reset' by abusing     ext4 mechanics of delayed allocation.(CVE-2017-7495)

  - A race condition was found in the Linux kernel, present     since v3.14-rc1 through v4.12. The race happens between     threads of inotify_handle_event() and vfs_rename()     while running the rename operation against the same     file. As a result of the race the next slab data or the     slab's free list pointer can be corrupted with     attacker-controlled data, which may lead to the     privilege escalation.(CVE-2017-7533)

  - Kernel memory corruption due to a buffer overflow was     found in brcmf_cfg80211_mgmt_tx() function in Linux     kernels from v3.9-rc1 to v4.13-rc1. The vulnerability     can be triggered by sending a crafted NL80211_CMD_FRAME     packet via netlink. This flaw is unlikely to be     triggered remotely as certain userspace code is needed     for this. An unprivileged local user could use this     flaw to induce kernel memory corruption on the system,     leading to a crash. Due to the nature of the flaw,     privilege escalation cannot be fully ruled out,     although it is unlikely.(CVE-2017-7541)

  - An integer overflow vulnerability in     ip6_find_1stfragopt() function was found. A local     attacker that has privileges (of CAP_NET_RAW) to open     raw socket can cause an infinite loop inside the     ip6_find_1stfragopt() function.(CVE-2017-7542)

  - Incorrect error handling in the set_mempolicy() and     mbind() compat syscalls in 'mm/mempolicy.c' in the     Linux kernel allows local users to obtain sensitive     information from uninitialized stack data by triggering     failure of a certain bitmap operation.(CVE-2017-7616)

  - The NFS2/3 RPC client could send long arguments to the     NFS server. These encoded arguments are stored in an     array of memory pages, and accessed using pointer     variables. Arbitrarily long arguments could make these     pointers point outside the array and cause an     out-of-bounds memory access. A remote user or program     could use this flaw to crash the kernel, resulting in     denial of service.(CVE-2017-7645)

  - The NFSv2 and NFSv3 server implementations in the Linux     kernel through 4.10.13 lacked certain checks for the     end of a buffer. A remote attacker could trigger a     pointer-arithmetic error or possibly cause other     unspecified impacts using crafted requests related to     fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c.(CVE-2017-7895)

  - It was found that the NFSv4 server in the Linux kernel     did not properly validate layout type when processing     NFSv4 pNFS LAYOUTGET and GETDEVICEINFO operands. A     remote attacker could use this flaw to soft-lockup the     system and thus cause denial of service.(CVE-2017-8797)

  - 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-2017-8824)

  - The inet_csk_clone_lock function in     net/ipv4/inet_connection_sock.c in the Linux kernel     allows attackers to cause a denial of service (double     free) or possibly have unspecified other impact by     leveraging use of the accept system call. An     unprivileged local user could use this flaw to induce     kernel memory corruption on the system, leading to a     crash. Due to the nature of the flaw, privilege     escalation cannot be fully ruled out, although we     believe it is unlikely.(CVE-2017-8890)

  - The edge_bulk_in_callback function in     drivers/usb/serial/io_ti.c in the Linux kernel allows     local users to obtain sensitive information (in the     dmesg ringbuffer and syslog) from uninitialized kernel     memory by using a crafted USB device (posing as an     io_ti USB serial device) to trigger an integer     underflow.(CVE-2017-8924)

  - The IPv6 fragmentation implementation in the Linux     kernel does not consider that the nexthdr field may be     associated with an invalid option, which allows local     users to cause a denial of service (out-of-bounds read     and BUG) or possibly have unspecified other impact via     crafted socket and send system calls. Due to the nature     of the flaw, privilege escalation cannot be fully ruled     out, although we believe it is unlikely.(CVE-2017-9074)

  - The sctp_v6_create_accept_sk function in     net/sctp/ipv6.c in the Linux kernel mishandles     inheritance, which allows local users to cause a denial     of service or possibly have unspecified other impact     via crafted system calls, a related issue to     CVE-2017-8890. An unprivileged local user could use     this flaw to induce kernel memory corruption on the     system, leading to a crash. Due to the nature of the     flaw, privilege escalation cannot be fully ruled out,     although we believe it is unlikely.(CVE-2017-9075)

  - The IPv6 DCCP implementation in the Linux kernel     mishandles inheritance, which allows local users to     cause a denial of service or possibly have unspecified     other impact via crafted system calls, a related issue     to CVE-2017-8890. An unprivileged local user could use     this flaw to induce kernel memory corruption on the     system, leading to a crash. Due to the nature of the     flaw, privilege escalation cannot be fully ruled out,     although we believe it is unlikely.(CVE-2017-9076)

  - The tcp_v6_syn_recv_sock function in     net/ipv6/tcp_ipv6.c in the Linux kernel mishandles     inheritance, which allows local users to cause a denial     of service or possibly have unspecified other impact     via crafted system calls, a related issue to     CVE-2017-8890. An unprivileged local user could use     this flaw to induce kernel memory corruption on the     system, leading to a crash. Due to the nature of the     flaw, privilege escalation cannot be fully ruled out,     although we believe it is unlikely.(CVE-2017-9077)

  - The __ip6_append_data function in net/ipv6/ip6_output.c     in the Linux kernel through 4.11.3 is too late in     checking whether an overwrite of an skb data structure     may occur, which allows local users to cause a denial     of service (system crash) via crafted system     calls.(CVE-2017-9242)

  - The vmw_gb_surface_define_ioctl function (accessible     via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in     drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux     kernel through 4.11.4 defines a backup_handle variable     but does not give it an initial value. If one attempts     to create a GB surface, with a previously allocated DMA     buffer to be used as a backup buffer, the backup_handle     variable does not get written to and is then later     returned to user space, allowing local users to obtain     sensitive information from uninitialized kernel memory     via a crafted ioctl call.(CVE-2017-9605)

  - In the Linux kernel versions 4.12, 3.10, 2.6, and     possibly earlier, a race condition vulnerability exists     in the sound system allowing for a potential deadlock     and memory corruption due to use-after-free condition     and thus denial of service. Due to the nature of the     flaw, privilege escalation cannot be fully ruled out,     although we believe it is unlikely.(CVE-2018-1000004)

  - 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)

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 :

  - The hid_input_field() function in     'drivers/hid/hid-core.c' in the Linux kernel before 4.6     allows physically proximate attackers to obtain     sensitive information from kernel memory or cause a     denial of service (out-of-bounds read) by connecting a     device.(CVE-2016-7915i1/4%0

  - The Linux kernel, before version 4.14.2, is vulnerable     to a deadlock caused by     fs/ocfs2/file.c:ocfs2_setattr(), as the function does     not wait for DIO requests before locking the inode.
    This can be exploited by local users to cause a     subsequent denial of service.(CVE-2017-18204i1/4%0

  - The vmw_gb_surface_define_ioctl function (accessible     via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in     drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux     kernel through 4.11.4 defines a backup_handle variable     but does not give it an initial value. If one attempts     to create a GB surface, with a previously allocated DMA     buffer to be used as a backup buffer, the backup_handle     variable does not get written to and is then later     returned to user space, allowing local users to obtain     sensitive information from uninitialized kernel memory     via a crafted ioctl call.(CVE-2017-9605i1/4%0

  - Use-after-free vulnerability in the nfqnl_zcopy     function in net/netfilter/nfnetlink_queue_core.c in the     Linux kernel through 3.13.6 allows attackers to obtain     sensitive information from kernel memory by leveraging     the absence of a certain orphaning operation. NOTE: the     affected code was moved to the skb_zerocopy function in     net/core/skbuff.c before the vulnerability was     announced.(CVE-2014-2568i1/4%0

  - It was found that the Linux kernel's ISO file system     implementation did not correctly limit the traversal of     Rock Ridge extension Continuation Entries (CE). An     attacker with physical access to the system could use     this flaw to trigger an infinite loop in the kernel,     resulting in a denial of service.(CVE-2014-9420i1/4%0

  - An integer overflow vulnerability was found in the     ring_buffer_resize() calculations in which a privileged     user can adjust the size of the ringbuffer message     size. These calculations can create an issue where the     kernel memory allocator will not allocate the correct     count of pages yet expect them to be usable. This can     lead to the ftrace() output to appear to corrupt kernel     memory and possibly be used for privileged escalation     or more likely kernel panic.(CVE-2016-9754i1/4%0

  - A symlink size validation was missing in Linux kernels     built with UDF file system (CONFIG_UDF_FS) support,     allowing the corruption of kernel memory. An attacker     able to mount a corrupted/malicious UDF file system     image could cause the kernel to crash.(CVE-2014-9730i1/4%0

  - 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-2017-7261i1/4%0

  - A race condition flaw was found in the way the Linux     kernel keys management subsystem performed key garbage     collection. A local attacker could attempt accessing a     key while it was being garbage collected, which would     cause the system to crash.(CVE-2014-9529i1/4%0

  - A flaw was found in the Linux kernel's implementation     of i8042 serial ports. An attacker could cause a kernel     panic if they are able to add and remove devices as the     module is loaded.(CVE-2017-18079i1/4%0

  - drivers/hid/hid-pl.c in the Human Interface Device     (HID) subsystem in the Linux kernel through 3.11, when     CONFIG_HID_PANTHERLORD is enabled, allows physically     proximate attackers to cause a denial of service     (heap-based out-of-bounds write) via a crafted     device.(CVE-2013-2892i1/4%0

  - The __clear_user function in     arch/arm64/lib/clear_user.S in the Linux kernel before     3.17.4 on the ARM64 platform allows local users to     cause a denial of service (system crash) by reading one     byte beyond a /dev/zero page boundary.(CVE-2014-7843i1/4%0

  - A divide-by-zero vulnerability was found in a way the     kernel processes TCP connections. The error can occur     if a connection starts another cwnd reduction phase by     setting tp-i1/4zprior_cwnd to the current cwnd (0) in     tcp_init_cwnd_reduction(). A remote, unauthenticated     attacker could use this flaw to crash the kernel     (denial of service).(CVE-2016-2070i1/4%0

  - The adjust_branches function in kernel/bpf/verifier.c     in the Linux kernel before 4.5 does not consider the     delta in the backward-jump case, which allows local     users to obtain sensitive information from kernel     memory by creating a packet filter and then loading     crafted BPF instructions.(CVE-2016-2383i1/4%0

  - System using the infiniband support module ib_srpt were     vulnerable to a denial of service by system crash by a     local attacker who is able to abort writes to a device     using this initiator.(CVE-2016-6327i1/4%0

  - A security flaw was found in the Linux kernel in the     mark_source_chains() function in     'net/ipv4/netfilter/ip_tables.c'. It is possible for a     user-supplied 'ipt_entry' structure to have a large     'next_offset' field. This field is not bounds checked     prior to writing to a counter value at the supplied     offset.(CVE-2016-3134i1/4%0

  - An out-of-bounds access issue was discovered in     yurex_read() in drivers/usb/misc/yurex.c in the Linux     kernel. A local attacker could use user access     read/writes with incorrect bounds checking in the yurex     USB driver to crash the kernel or potentially escalate     privileges.(CVE-2018-16276i1/4%0

  - drivers/media/v4l2-core/videobuf2-v4l2.c in the Linux     kernel before 4.5.3 allows local users to cause a     denial of service (kernel memory write operation) or     possibly have unspecified other impact via a crafted     number of planes in a VIDIOC_DQBUF ioctl     call.(CVE-2016-4568i1/4%0

  - The usb_serial_console_disconnect function in     drivers/usb/serial/console.c in the Linux kernel,     before 4.13.8, allows local users to cause a denial of     service (use-after-free and system crash) or possibly     have unspecified other impact via a crafted USB device,     related to disconnection and failed     setup.(CVE-2017-16525i1/4%0

  - The Linux kernel is vulnerable to a NULL pointer     dereference in the ext4/xattr.c:ext4_xattr_inode_hash()     function. An attacker could trick a legitimate user or     a privileged attacker could exploit this to cause a     NULL pointer dereference with a crafted ext4 image.
    (CVE-2018-1094)

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.

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

  - CVE-2014-9940     A use-after-free flaw in the voltage and current     regulator driver could allow a local user to cause a     denial of service or potentially escalate privileges.

  - CVE-2017-7346     Li Qiang discovered that the DRM driver for VMware     virtual GPUs does not properly check user-controlled     values in the vmw_surface_define_ioctl() functions for     upper limits. A local user can take advantage of this     flaw to cause a denial of service.

  - CVE-2017-7482     Shi Lei discovered that RxRPC Kerberos 5 ticket handling     code does not properly verify metadata, leading to     information disclosure, denial of service or potentially     execution of arbitrary code.

  - CVE-2017-7533     Fan Wu and Shixiong Zhao discovered a race condition     between inotify events and VFS rename operations     allowing an unprivileged local attacker to cause a     denial of service or escalate privileges.

  - CVE-2017-7541     A buffer overflow flaw in the Broadcom IEEE802.11n PCIe     SoftMAC WLAN driver could allow a local user to cause     kernel memory corruption, leading to a denial of service     or potentially privilege escalation.

  - CVE-2017-7542     An integer overflow vulnerability in the     ip6_find_1stfragopt() function was found allowing a     local attacker with privileges to open raw sockets to     cause a denial of service.

  - CVE-2017-7889     Tommi Rantala and Brad Spengler reported that the mm     subsystem does not properly enforce the     CONFIG_STRICT_DEVMEM protection mechanism, allowing a     local attacker with access to /dev/mem to obtain     sensitive information or potentially execute arbitrary     code.

  - CVE-2017-9605     Murray McAllister discovered that the DRM driver for     VMware virtual GPUs does not properly initialize memory,     potentially allowing a local attacker to obtain     sensitive information from uninitialized kernel memory     via a crafted ioctl call.

  - CVE-2017-10911     / XSA-216

  Anthony Perard of Citrix discovered an information leak flaw in Xen   blkif response handling, allowing a malicious unprivileged guest to   obtain sensitive information from the host or other guests.

  - CVE-2017-11176     It was discovered that the mq_notify() function does not     set the sock pointer to NULL upon entry into the retry     logic. An attacker can take advantage of this flaw     during a userspace close of a Netlink socket to cause a     denial of service or potentially cause other impact.

  - CVE-2017-1000363     Roee Hay reported that the lp driver does not properly     bounds-check passed arguments, allowing a local attacker     with write access to the kernel command line arguments     to execute arbitrary code.

  - CVE-2017-1000365     It was discovered that argument and environment pointers     are not taken properly into account to the imposed size     restrictions on arguments and environmental strings     passed through RLIMIT_STACK/RLIMIT_INFINITY. A local     attacker can take advantage of this flaw in conjunction     with other flaws to execute arbitrary code.

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

  - CVE-2017-7346     Li Qiang discovered that the DRM driver for VMware     virtual GPUs does not properly check user-controlled     values in the vmw_surface_define_ioctl() functions for     upper limits. A local user can take advantage of this     flaw to cause a denial of service.

  - CVE-2017-7482     Shi Lei discovered that RxRPC Kerberos 5 ticket handling     code does not properly verify metadata, leading to     information disclosure, denial of service or potentially     execution of arbitrary code.

  - CVE-2017-7533     Fan Wu and Shixiong Zhao discovered a race condition     between inotify events and VFS rename operations     allowing an unprivileged local attacker to cause a     denial of service or escalate privileges.

  - CVE-2017-7541     A buffer overflow flaw in the Broadcom IEEE802.11n PCIe     SoftMAC WLAN driver could allow a local user to cause     kernel memory corruption, leading to a denial of service     or potentially privilege escalation.

  - CVE-2017-7542     An integer overflow vulnerability in the     ip6_find_1stfragopt() function was found allowing a     local attacker with privileges to open raw sockets to     cause a denial of service.

  - CVE-2017-9605     Murray McAllister discovered that the DRM driver for     VMware virtual GPUs does not properly initialize memory,     potentially allowing a local attacker to obtain     sensitive information from uninitialized kernel memory     via a crafted ioctl call.

  - CVE-2017-10810     Li Qiang discovered a memory leak flaw within the VirtIO     GPU driver resulting in denial of service (memory     consumption).

  - CVE-2017-10911 / XSA-216     Anthony Perard of Citrix discovered an information leak     flaw in Xen blkif response handling, allowing a     malicious unprivileged guest to obtain sensitive     information from the host or other guests.

  - CVE-2017-11176     It was discovered that the mq_notify() function does not     set the sock pointer to NULL upon entry into the retry     logic. An attacker can take advantage of this flaw     during a user-space close of a Netlink socket to cause a     denial of service or potentially cause other impact.

  - CVE-2017-1000365     It was discovered that argument and environment pointers     are not taken properly into account to the imposed size     restrictions on arguments and environmental strings     passed through RLIMIT_STACK/RLIMIT_INFINITY. A local     attacker can take advantage of this flaw in conjunction     with other flaws to execute arbitrary code.

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3371-1 advisory.

  - The ethtool_get_wol function in net/core/ethtool.c in the Linux kernel through 4.7, as used in Android     before 2016-08-05 on Nexus 5 and 7 (2013) devices, does not initialize a certain data structure, which     allows local users to obtain sensitive information via a crafted application, aka Android internal bug     28803952 and Qualcomm internal bug CR570754. (CVE-2014-9900)

  - sound/core/timer.c in the Linux kernel before 4.11.5 is vulnerable to a data race in the ALSA     /dev/snd/timer driver resulting in local users being able to read information belonging to other users,     i.e., uninitialized memory contents may be disclosed when a read and an ioctl happen at the same time.
    (CVE-2017-1000380)

  - The vmw_gb_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel     through 4.10.7 does not validate certain levels data, which allows local users to cause a denial of     service (system hang) via a crafted ioctl call for a /dev/dri/renderD* device. (CVE-2017-7346)

  - The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in     drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle     variable but does not give it an initial value. If one attempts to create a GB surface, with a previously     allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and     is then later returned to user space, allowing local users to obtain sensitive information from     uninitialized kernel memory via a crafted ioctl call. (CVE-2017-9605)

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-3364-3 advisory.

  - The ethtool_get_wol function in net/core/ethtool.c in the Linux kernel through 4.7, as used in Android     before 2016-08-05 on Nexus 5 and 7 (2013) devices, does not initialize a certain data structure, which     allows local users to obtain sensitive information via a crafted application, aka Android internal bug     28803952 and Qualcomm internal bug CR570754. (CVE-2014-9900)

  - The ioresources_init function in kernel/resource.c in the Linux kernel through 4.7, as used in Android     before 2016-08-05 on Nexus 6 and 7 (2013) devices, uses weak permissions for /proc/iomem, which allows     local users to obtain sensitive information by reading this file, aka Android internal bug 28814213 and     Qualcomm internal bug CR786116. NOTE: the permissions may be intentional in most non-Android contexts.
    (CVE-2015-8944)

  - sound/core/timer.c in the Linux kernel before 4.11.5 is vulnerable to a data race in the ALSA     /dev/snd/timer driver resulting in local users being able to read information belonging to other users,     i.e., uninitialized memory contents may be disclosed when a read and an ioctl happen at the same time.
    (CVE-2017-1000380)

  - The vmw_gb_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel     through 4.10.7 does not validate certain levels data, which allows local users to cause a denial of     service (system hang) via a crafted ioctl call for a /dev/dri/renderD* device. (CVE-2017-7346)

  - The do_check function in kernel/bpf/verifier.c in the Linux kernel before 4.11.1 does not make the     allow_ptr_leaks value available for restricting the output of the print_bpf_insn function, which allows     local users to obtain sensitive address information via crafted bpf system calls. (CVE-2017-9150)

  - The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in     drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle     variable but does not give it an initial value. If one attempts to create a GB surface, with a previously     allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and     is then later returned to user space, allowing local users to obtain sensitive information from     uninitialized kernel memory via a crafted ioctl call. (CVE-2017-9605)

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 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3364-2 advisory.

  - The ethtool_get_wol function in net/core/ethtool.c in the Linux kernel through 4.7, as used in Android     before 2016-08-05 on Nexus 5 and 7 (2013) devices, does not initialize a certain data structure, which     allows local users to obtain sensitive information via a crafted application, aka Android internal bug     28803952 and Qualcomm internal bug CR570754. (CVE-2014-9900)

  - The ioresources_init function in kernel/resource.c in the Linux kernel through 4.7, as used in Android     before 2016-08-05 on Nexus 6 and 7 (2013) devices, uses weak permissions for /proc/iomem, which allows     local users to obtain sensitive information by reading this file, aka Android internal bug 28814213 and     Qualcomm internal bug CR786116. NOTE: the permissions may be intentional in most non-Android contexts.
    (CVE-2015-8944)

  - sound/core/timer.c in the Linux kernel before 4.11.5 is vulnerable to a data race in the ALSA     /dev/snd/timer driver resulting in local users being able to read information belonging to other users,     i.e., uninitialized memory contents may be disclosed when a read and an ioctl happen at the same time.
    (CVE-2017-1000380)

  - The vmw_gb_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel     through 4.10.7 does not validate certain levels data, which allows local users to cause a denial of     service (system hang) via a crafted ioctl call for a /dev/dri/renderD* device. (CVE-2017-7346)

  - The do_check function in kernel/bpf/verifier.c in the Linux kernel before 4.11.1 does not make the     allow_ptr_leaks value available for restricting the output of the print_bpf_insn function, which allows     local users to obtain sensitive address information via crafted bpf system calls. (CVE-2017-9150)

  - The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in     drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle     variable but does not give it an initial value. If one attempts to create a GB surface, with a previously     allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and     is then later returned to user space, allowing local users to obtain sensitive information from     uninitialized kernel memory via a crafted ioctl call. (CVE-2017-9605)

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-3364-1 advisory.

  - The ethtool_get_wol function in net/core/ethtool.c in the Linux kernel through 4.7, as used in Android     before 2016-08-05 on Nexus 5 and 7 (2013) devices, does not initialize a certain data structure, which     allows local users to obtain sensitive information via a crafted application, aka Android internal bug     28803952 and Qualcomm internal bug CR570754. (CVE-2014-9900)

  - The ioresources_init function in kernel/resource.c in the Linux kernel through 4.7, as used in Android     before 2016-08-05 on Nexus 6 and 7 (2013) devices, uses weak permissions for /proc/iomem, which allows     local users to obtain sensitive information by reading this file, aka Android internal bug 28814213 and     Qualcomm internal bug CR786116. NOTE: the permissions may be intentional in most non-Android contexts.
    (CVE-2015-8944)

  - sound/core/timer.c in the Linux kernel before 4.11.5 is vulnerable to a data race in the ALSA     /dev/snd/timer driver resulting in local users being able to read information belonging to other users,     i.e., uninitialized memory contents may be disclosed when a read and an ioctl happen at the same time.
    (CVE-2017-1000380)

  - The vmw_gb_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel     through 4.10.7 does not validate certain levels data, which allows local users to cause a denial of     service (system hang) via a crafted ioctl call for a /dev/dri/renderD* device. (CVE-2017-7346)

  - The do_check function in kernel/bpf/verifier.c in the Linux kernel before 4.11.1 does not make the     allow_ptr_leaks value available for restricting the output of the print_bpf_insn function, which allows     local users to obtain sensitive address information via crafted bpf system calls. (CVE-2017-9150)

  - The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in     drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle     variable but does not give it an initial value. If one attempts to create a GB surface, with a previously     allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and     is then later returned to user space, allowing local users to obtain sensitive information from     uninitialized kernel memory via a crafted ioctl call. (CVE-2017-9605)

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 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3360-1 advisory.

  - The ethtool_get_wol function in net/core/ethtool.c in the Linux kernel through 4.7, as used in Android     before 2016-08-05 on Nexus 5 and 7 (2013) devices, does not initialize a certain data structure, which     allows local users to obtain sensitive information via a crafted application, aka Android internal bug     28803952 and Qualcomm internal bug CR570754. (CVE-2014-9900)

  - The ioresources_init function in kernel/resource.c in the Linux kernel through 4.7, as used in Android     before 2016-08-05 on Nexus 6 and 7 (2013) devices, uses weak permissions for /proc/iomem, which allows     local users to obtain sensitive information by reading this file, aka Android internal bug 28814213 and     Qualcomm internal bug CR786116. NOTE: the permissions may be intentional in most non-Android contexts.
    (CVE-2015-8944)

  - arch/arm64/kernel/perf_event.c in the Linux kernel before 4.1 on arm64 platforms allows local users to     gain privileges or cause a denial of service (invalid pointer dereference) via vectors involving events     that are mishandled during a span of multiple HW PMUs. (CVE-2015-8955)

  - Double free vulnerability in the sg_common_write function in drivers/scsi/sg.c in the Linux kernel before     4.4 allows local users to gain privileges or cause a denial of service (memory corruption and system     crash) by detaching a device during an SG_IO ioctl call. (CVE-2015-8962)

  - Race condition in kernel/events/core.c in the Linux kernel before 4.4 allows local users to gain     privileges or cause a denial of service (use-after-free) by leveraging incorrect handling of an swevent     data structure during a CPU unplug operation. (CVE-2015-8963)

  - 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-2015-8964)

  - arch/arm/kernel/sys_oabi-compat.c in the Linux kernel before 4.4 allows local users to gain privileges via     a crafted (1) F_OFD_GETLK, (2) F_OFD_SETLK, or (3) F_OFD_SETLKW command in an fcntl64 system call.
    (CVE-2015-8966)

  - arch/arm64/kernel/sys.c in the Linux kernel before 4.0 allows local users to bypass the strict page     permissions protection mechanism and modify the system-call table, and consequently gain privileges, by     leveraging write access. (CVE-2015-8967)

  - The sg implementation in the Linux kernel through 4.9 does not properly restrict write operations in     situations where the KERNEL_DS option is set, which allows local users to read or write to arbitrary     kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg     device, related to block/bsg.c and drivers/scsi/sg.c. NOTE: this vulnerability exists because of an     incomplete fix for CVE-2016-9576. (CVE-2016-10088)

  - sound/core/timer.c in the Linux kernel before 4.11.5 is vulnerable to a data race in the ALSA     /dev/snd/timer driver resulting in local users being able to read information belonging to other users,     i.e., uninitialized memory contents may be disclosed when a read and an ioctl happen at the same time.
    (CVE-2017-1000380)

  - The vmw_gb_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel     through 4.10.7 does not validate certain levels data, which allows local users to cause a denial of     service (system hang) via a crafted ioctl call for a /dev/dri/renderD* device. (CVE-2017-7346)

  - The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lack certain checks for the     end of a buffer, which allows remote attackers to trigger pointer-arithmetic errors or possibly have     unspecified other impact via crafted requests, related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c.
    (CVE-2017-7895)

  - The edge_bulk_in_callback function in drivers/usb/serial/io_ti.c in the Linux kernel before 4.10.4 allows     local users to obtain sensitive information (in the dmesg ringbuffer and syslog) from uninitialized kernel     memory by using a crafted USB device (posing as an io_ti USB serial device) to trigger an integer     underflow. (CVE-2017-8924)

  - The omninet_open function in drivers/usb/serial/omninet.c in the Linux kernel before 4.10.4 allows local     users to cause a denial of service (tty exhaustion) by leveraging reference count mishandling.
    (CVE-2017-8925)

  - The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in     drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle     variable but does not give it an initial value. If one attempts to create a GB surface, with a previously     allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and     is then later returned to user space, allowing local users to obtain sensitive information from     uninitialized kernel memory via a crafted ioctl call. (CVE-2017-9605)

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

It was discovered that the Linux kernel did not properly initialize a Wake- on-Lan data structure. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2014-9900)

Dmitry Vyukov, Andrey Konovalov, Florian Westphal, and Eric Dumazet discovered that the netfiler subsystem in the Linux kernel mishandled IPv6 packet reassembly. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2016-9755)

Alexander Potapenko discovered a race condition in the Advanced Linux Sound Architecture (ALSA) subsystem in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-1000380)

It was discovered that the Linux kernel did not clear the setgid bit during a setxattr call on a tmpfs filesystem. A local attacker could use this to gain elevated group privileges. (CVE-2017-5551)

Murray McAllister discovered that an integer overflow existed in the VideoCore DRM driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-5576)

Li Qiang discovered that the DRM driver for VMware Virtual GPUs in the Linux kernel did not properly validate some ioctl arguments. A local attacker could use this to cause a denial of service (system crash).
(CVE-2017-7346)

Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux kernel did not properly check for the end of buffer. A remote attacker could use this to craft requests that cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-7895)

It was discovered that an integer underflow existed in the Edgeport USB Serial Converter device driver of the Linux kernel. An attacker with physical access could use this to expose sensitive information (kernel memory). (CVE-2017-8924)

It was discovered that the USB ZyXEL omni.net LCD PLUS driver in the Linux kernel did not properly perform reference counting. A local attacker could use this to cause a denial of service (tty exhaustion).
(CVE-2017-8925)

Jann Horn discovered that bpf in Linux kernel does not restrict the output of the print_bpf_insn function. A local attacker could use this to obtain sensitive address information. (CVE-2017-9150)

Murray McAllister discovered that the DRM driver for VMware Virtual GPUs in the Linux kernel did not properly initialize memory. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-9605).

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

It was discovered that the Linux kernel did not properly initialize a Wake- on-Lan data structure. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2014-9900)

Alexander Potapenko discovered a race condition in the Advanced Linux Sound Architecture (ALSA) subsystem in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-1000380)

Li Qiang discovered that the DRM driver for VMware Virtual GPUs in the Linux kernel did not properly validate some ioctl arguments. A local attacker could use this to cause a denial of service (system crash).
(CVE-2017-7346)

Murray McAllister discovered that the DRM driver for VMware Virtual GPUs in the Linux kernel did not properly initialize memory. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-9605).

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

ID	Name	Product	Family	Severity
199280	RHEL 7 : kernel (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
199273	RHEL 6 : kernel (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
143454	OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0054)	Nessus	OracleVM Local Security Checks	medium
143427	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5962)	Nessus	Oracle Linux Local Security Checks	medium
124827	EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1504)	Nessus	Huawei Local Security Checks	critical
124796	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1472)	Nessus	Huawei Local Security Checks	high
121706	Photon OS 1.0: Linux PHSA-2017-0022	Nessus	PhotonOS Local Security Checks	high
102550	Debian DSA-3945-1 : linux - security update (Stack Clash)	Nessus	Debian Local Security Checks	high
102211	Debian DSA-3927-1 : linux - security update (Stack Clash)	Nessus	Debian Local Security Checks	high
102071	Ubuntu 16.04 LTS : Linux kernel (HWE) kernel vulnerabilities (USN-3371-1)	Nessus	Ubuntu Local Security Checks	medium
101973	Ubuntu 16.04 LTS : Linux kernel (AWS, GKE) vulnerabilities (USN-3364-3)	Nessus	Ubuntu Local Security Checks	medium
101952	Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-3364-2)	Nessus	Ubuntu Local Security Checks	medium
101951	Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-3364-1)	Nessus	Ubuntu Local Security Checks	medium
101928	Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-3360-1)	Nessus	Ubuntu Local Security Checks	critical
101894	Ubuntu 16.10 : linux, linux-raspi2 vulnerabilities (USN-3359-1)	Nessus	Ubuntu Local Security Checks	critical
101893	Ubuntu 17.04 : linux, linux-raspi2 vulnerabilities (USN-3358-1)	Nessus	Ubuntu Local Security Checks	medium

Detections

Analytics

CVE-2017-9605

medium

Tenable Plugins

critical

critical

medium

medium

critical

high

high

high

high

medium

medium

medium

medium

critical

critical

medium