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

  - The kernel package contains the Linux kernel (vmlinuz),     the core of any Linux operating system. The kernel     handles the basic functions of the operating system:
    memory allocation, process allocation, device input and     output, etc.Security Fix(es):A flaw was found in Linux     kernel in the ext4 filesystem code. A use-after-free is     possible in ext4_ext_remove_space() function when     mounting and operating a crafted ext4     image.(CVE-2018-10876)A flaw was found in the Linux     kernel. A use-after-free was found in the way the     console subsystem was using ioctls KDGKBSENT and     KDSKBSENT. A local user could use this flaw to get read     memory access out of bounds. The highest threat from     this vulnerability is to data     confidentiality.(CVE-2020-25656)A flaw was found in the     way RTAS handled memory accesses in userspace to kernel     communication. On a locked down (usually due to Secure     Boot) guest system running on top of PowerVM or KVM     hypervisors (pseries platform) a root like local user     could use this flaw to further increase their     privileges to that of a running     kernel.(CVE-2020-27777)A information disclosure     vulnerability in the Upstream kernel encrypted-keys.
    Product: Android. Versions: Android kernel. Android ID:
    A-70526974.(CVE-2017-13305)A race condition was found     in the Linux kernels implementation of the floppy disk     drive controller driver software. The impact of this     issue is lessened by the fact that the default     permissions on the floppy device (/dev/fd0) are     restricted to root. If the permissions on the device     have changed the impact changes greatly. In the default     configuration root (or equivalent) permissions are     required to attack this flaw.(CVE-2021-20261)An issue     was discovered in dlpar_parse_cc_property in     arch/powerpc/platforms/pseries/dlpar.c in the Linux     kernel through 5.1.6. There is an unchecked kstrdup of     prop->name, which might allow an attacker to cause a     denial of service (NULL pointer dereference and system     crash).(CVE-2019-12614)An issue was discovered in     fs/xfs/xfs_icache.c in the Linux kernel through 4.17.3.
    There is a NULL pointer dereference and panic in     lookup_slow() on a NULL inode->i_ops pointer when doing     pathwalks on a corrupted xfs image. This occurs because     of a lack of proper validation that cached inodes are     free during allocation.(CVE-2018-13093)An issue was     discovered in rds_tcp_kill_sock in net/rds/tcp.c in the     Linux kernel before 5.0.8. There is a race condition     leading to a use-after-free, related to net namespace     cleanup.(CVE-2019-11815)An issue was discovered in the     Linux kernel through 5.11.3. A kernel pointer leak can     be used to determine the address of the iscsi_transport     structure. When an iSCSI transport is registered with     the iSCSI subsystem, the transport's handle is     available to unprivileged users via the sysfs file     system, at     /sys/class/iscsi_transport/$TRANSPORT_NAME/handle. When     read, the show_transport_handle function (in     drivers/scsi/scsi_transport_iscsi.c) is called, which     leaks the handle. This handle is actually the pointer     to an iscsi_transport struct in the kernel module's     global variables.(CVE-2021-27363)An issue was     discovered in the Linux kernel through 5.11.3. Certain     iSCSI data structures do not have appropriate length     constraints or checks, and can exceed the PAGE_SIZE     value. An unprivileged user can send a Netlink message     that is associated with iSCSI, and has a length up to     the maximum length of a Netlink     message.(CVE-2021-27365)An issue was discovered in the     Linux kernel through 5.11.3.
    drivers/scsi/scsi_transport_iscsi.c is adversely     affected by the ability of an unprivileged user to     craft Netlink messages.(CVE-2021-27364)An issue was     discovered in yurex_read in drivers/usb/misc/yurex.c in     the Linux kernel before 4.17.7. Local attackers could     use user access read/writes with incorrect bounds     checking in the yurex USB driver to crash the kernel or     potentially escalate     privileges.(CVE-2018-16276)drivers/infiniband/core/ucma     .c in the Linux kernel through 4.17.11 allows     ucma_leave_multicast to access a certain data structure     after a cleanup step in ucma_process_join, which allows     attackers to cause a denial of service     (use-after-free).(CVE-2018-14734)In create_pinctrl of     core.c, there is a possible out of bounds read due to a     use after free. This could lead to local information     disclosure with no additional execution privileges     needed. User interaction is not needed for     exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-140550171(CVE-2020-0427)In     do_epoll_ctl and ep_loop_check_proc of eventpoll.c,     there is a possible use after free due to a logic     error. This could lead to local escalation of privilege     with no additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-147802478References: Upstream kernel(CVE-2020-0466)In     fs/ocfs2/cluster/ nodemanager.c in the Linux kernel     before 4.15, local users can cause a denial of service     (NULL pointer dereference and BUG) because a required     mutex is not used.(CVE-2017-18216)In the Linux kernel     before 5.2, 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, aka     CID-345c0dbf3a30.(CVE-2019-19319)In the Linux kernel     before version 4.12, Kerberos 5 tickets decoded when     using the RXRPC keys incorrectly assumes the size of a     field. This could lead to the size-remaining variable     wrapping and the data pointer going over the end of the     buffer. This could possibly lead to memory corruption     and possible privilege escalation.(CVE-2017-7482)In     uvc_scan_chain_forward of uvc_driver.c, there is a     possible linked list corruption due to an unusual root     cause. This could lead to local escalation of privilege     in the kernel with no additional execution privileges     needed. User interaction is not needed for     exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-111893654References: Upstream     kernel(CVE-2020-0404)In various methods of     hid-multitouch.c, there is a possible out of bounds     write due to a missing bounds check. This could lead to     local escalation of privilege with no additional     execution privileges needed. User interaction is not     needed for exploitation.Product: AndroidVersions:
    Android kernelAndroid ID: A-162844689References:
    Upstream kernel(CVE-2020-0465)It was found that the raw     midi kernel driver does not protect against concurrent     access which leads to a double realloc (double free) in     snd_rawmidi_input_params() and     snd_rawmidi_output_status() which are part of     snd_rawmidi_ioctl() handler in rawmidi.c file. A     malicious local attacker could possibly use this for     privilege escalation.(CVE-2018-10902)Linux kernel ext4     filesystem is vulnerable to an out-of-bound access in     the ext4_ext_drop_refs() function when operating on a     crafted ext4 filesystem image.(CVE-2018-10877)Linux     kernel is vulnerable to a stack-out-of-bounds write in     the ext4 filesystem code when mounting and writing to a     crafted ext4 image in ext4_update_inline_data(). An     attacker could use this to cause a system crash and a     denial of service.(CVE-2018-10880)Linux Kernel contains     an out-of-bounds read flaw in the asn1_ber_decoder()     function in lib/asn1_decoder.c that is triggered when     decoding ASN.1 data. This may allow a remote attacker     to disclose potentially sensitive memory     contents.(CVE-2018-9383)use-after-free read in     sunkbd_reinit in     drivers/input/keyboard/sunkbd.c(CVE-2020-25669)mwifiex_     cmd_802_11_ad_hoc_start in drivers/     net/wireless/marvell/mwifiex/join.c in the Linux kernel     through 5.10.4 might allow remote attackers to execute     arbitrary code via a long SSID value, aka     CID-5c455c5ab332.(CVE-2020-36158)fs/ nfsd/ nfs3xdr.c in     the Linux kernel through 5.10.8, when there is an NFS     export of a subdirectory of a filesystem, allows remote     attackers to traverse to other parts of the filesystem     via READDIRPLUS. NOTE: some parties argue that such a     subdirectory export is not intended to prevent this     attack see also the exports(5) no_subtree_check default     behavior.(CVE-2021-3178)In the Linux kernel before     4.20.8, kvm_ioctl_create_device in virt/kvm/kvm_main.c     mishandles reference counting because of a race     condition, leading to a     use-after-free.(CVE-2019-6974)The KVM implementation in     the Linux kernel through 4.20.5 has a     Use-after-Free.(CVE-2019-7221)A flaw was found in the     JFS filesystem code. This flaw allows a local attacker     with the ability to set extended attributes to panic     the system, causing memory corruption or escalating     privileges. The highest threat from this vulnerability     is to confidentiality, integrity, as well as system     availability.(CVE-2020-27815)An out-of-bounds (OOB)     memory access flaw was found in x25_bind in     net/x25/af_x25.c in the Linux kernel. A bounds check     failure allows a local attacker with a user account on     the system to gain access to out-of-bounds memory,     leading to a system crash or a leak of internal kernel     information. The highest threat from this vulnerability     is to confidentiality, integrity, as well as system     availability.(CVE-2020-35519)In     drivers/pci/hotplug/rpadlpar_sysfs.c in the Linux     kernel through 5.11.8, the RPA PCI Hotplug driver has a     user-tolerable buffer overflow when writing a new     device name to the driver from userspace, allowing     userspace to write data to the kernel stack frame     directly. This occurs because add_slot_store and     remove_slot_store mishandle drc_name '\0' termination,     aka CID-cc7a0bb058b8.(CVE-2021-28972)A NULL pointer     dereference was found in the net/rds/rdma.c
    __rds_rdma_map() function in the Linux kernel before     4.14.7 allowing local attackers to cause a system panic     and a denial-of-service, related to RDS_GET_MR and     RDS_GET_MR_FOR_DEST.(CVE-2018-7492)The Siemens R3964     line discipline driver in drivers/tty/ n_r3964.c in the     Linux kernel before 5.0.8 has multiple race     conditions.(CVE-2019-11486)The kernel in Android before     2016-08-05 on Nexus 7 (2013) devices allows attackers     to gain privileges via a crafted application, aka     internal bug 28522518.(CVE-2016-3857)The KVM     implementation in the Linux kernel through 4.14.7     allows attackers to obtain potentially sensitive     information from kernel memory, aka a write_mmio     stack-based out-of-bounds read, related to     arch/x86/kvm/x86.c and     include/trace/events/kvm.h.(CVE-2017-17741)The     sctp_process_param function in net/sctp/sm_make_chunk.c     in the SCTP implementation in the Linux kernel before     3.17.4, when ASCONF is used, allows remote attackers to     cause a denial of service (NULL pointer dereference and     system crash) via a malformed INIT     chunk.(CVE-2014-7841)The XFS subsystem in the Linux     kernel through 4.8.2 allows local users to cause a     denial of service (fdatasync failure and system hang)     by using the vfs syscall group in the trinity program,     related to a 'page lock order bug in the XFS seek     hole/data implementation.'(CVE-2016-8660)The     xfs_dinode_verify function in     fs/xfs/libxfs/xfs_inode_buf.c in the Linux kernel     through 4.16.3 allows local users to cause a denial of     service (xfs_ilock_attr_map_shared invalid pointer     dereference) via a crafted xfs image.(CVE-2018-10322)

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 SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:14630-1 advisory.

  - An issue was discovered in net/wireless/nl80211.c in the Linux kernel through 5.2.17. It does not check     the length of variable elements in a beacon head, leading to a buffer overflow. (CVE-2019-16746)

  - In uvc_scan_chain_forward of uvc_driver.c, there is a possible linked list corruption due to an unusual     root cause. This could lead to local escalation of privilege in the kernel with no additional execution     privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-111893654References: Upstream kernel (CVE-2020-0404)

  - In kbd_keycode of keyboard.c, there is a possible out of bounds write due to a missing bounds check. This     could lead to local escalation of privilege with no additional execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-144161459     (CVE-2020-0431)

  - In various methods of hid-multitouch.c, there is a possible out of bounds write due to a missing bounds     check. This could lead to local escalation of privilege with no additional execution privileges needed.
    User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-162844689References: Upstream kernel (CVE-2020-0465)

  - In the Linux kernel before 5.6.1, drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink camera USB     driver) mishandles invalid descriptors, aka CID-a246b4d54770. (CVE-2020-11668)

  - A flaw was found in the Linux kernels implementation of the invert video code on VGA consoles when a     local attacker attempts to resize the console, calling an ioctl VT_RESIZE, which causes an out-of-bounds     write to occur. This flaw allows a local user with access to the VGA console to crash the system,     potentially escalating their privileges on the system. The highest threat from this vulnerability is to     data confidentiality and integrity as well as system availability. (CVE-2020-14331)

  - ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2017-18270. Reason: This candidate is a     duplicate of CVE-2017-18270. Notes: All CVE users should reference CVE-2017-18270 instead of this     candidate. All references and descriptions in this candidate have been removed to prevent accidental     usage. (CVE-2020-14353)

  - A flaw was found in the Linux kernels futex implementation. This flaw allows a local attacker to corrupt     system memory or escalate their privileges when creating a futex on a filesystem that is about to be     unmounted. The highest threat from this vulnerability is to confidentiality, integrity, as well as system     availability. (CVE-2020-14381)

  - A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size, an out-of-     bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of     the flaw, privilege escalation cannot be fully ruled out. (CVE-2020-14390)

  - Use-after-free vulnerability in fs/block_dev.c in the Linux kernel before 5.8 allows local users to gain     privileges or cause a denial of service by leveraging improper access to a certain error field.
    (CVE-2020-15436)

  - The Linux kernel before version 5.8 is vulnerable to a NULL pointer dereference in     drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allows local users to cause a denial     of service by using the p->serial_in pointer which uninitialized. (CVE-2020-15437)

  - In the Linux kernel through 5.8.7, local attackers able to inject conntrack netlink configuration could     overflow a local buffer, causing crashes or triggering use of incorrect protocol numbers in     ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka CID-1cc5ef91d2ff.
    (CVE-2020-25211)

  - The rbd block device driver in drivers/block/rbd.c in the Linux kernel through 5.8.9 used incomplete     permission checking for access to rbd devices, which could be leveraged by local attackers to map or unmap     rbd block devices, aka CID-f44d04e696fe. (CVE-2020-25284)

  - A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be     used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified     other impact, aka CID-17743798d812. (CVE-2020-25285)

  - A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7. Memory corruption     and a read overflow is caused by improper input validation in the ppp_cp_parse_cr function which can cause     the system to crash or cause a denial of service. The highest threat from this vulnerability is to data     confidentiality and integrity as well as system availability. (CVE-2020-25643)

  - A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was     using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of     bounds. The highest threat from this vulnerability is to data confidentiality. (CVE-2020-25656)

  - A flaw was found in Linux Kernel because access to the global variable fg_console is not properly     synchronized leading to a use after free in con_font_op. (CVE-2020-25668)

  - A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by     sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in     sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free. (CVE-2020-25669)

  - In the nl80211_policy policy of nl80211.c, there is a possible out of bounds read due to a missing bounds     check. This could lead to local information disclosure with System execution privileges needed. User     interaction is not required for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-119770583 (CVE-2020-27068)

  - A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked     down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries     platform) a root like local user could use this flaw to further increase their privileges to that of a     running kernel. (CVE-2020-27777)

  - A flaw was found in the Linux kernels implementation of MIDI, where an attacker with a local account and     the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to     this specific memory while freed and before use causes the flow of execution to change and possibly allow     for memory corruption or privilege escalation. The highest threat from this vulnerability is to     confidentiality, integrity, as well as system availability. (CVE-2020-27786)

  - A buffer over-read (at the framebuffer layer) in the fbcon code in the Linux kernel before 5.8.15 could be     used by local attackers to read kernel memory, aka CID-6735b4632def. (CVE-2020-28915)

  - A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to     read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because     KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height. (CVE-2020-28974)

  - A locking inconsistency issue was discovered in the tty subsystem of the Linux kernel through 5.9.13.
    drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may allow a read-after-free attack against TIOCGSID,     aka CID-c8bcd9c5be24. (CVE-2020-29660)

  - A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13.
    drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b.
    (CVE-2020-29661)

  - mwifiex_cmd_802_11_ad_hoc_start in drivers/net/wireless/marvell/mwifiex/join.c in the Linux kernel through     5.10.4 might allow remote attackers to execute arbitrary code via a long SSID value, aka CID-5c455c5ab332.
    (CVE-2020-36158)

  - IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive     information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296.
    (CVE-2020-4788)

  - An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free     during fault handling, allowing local users to execute code in the kernel, aka CID-34b1a1ce1458.
    (CVE-2021-3347)

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 :

  - In do_epoll_ctl and ep_loop_check_proc of eventpoll.c,     there is a possible use after free due to a logic     error. This could lead to local escalation of privilege     with no additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-147802478References: Upstream kernel(CVE-2020-0466)

  - In the l2tp subsystem, there is a possible use after     free due to a race condition. This could lead to local     escalation of privilege with System execution     privileges needed. User interaction is not needed for     exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-152409173(CVE-2020-27067)

  - In the nl80211_policy policy of nl80211.c, there is a     possible out of bounds read due to a missing bounds     check. This could lead to local information disclosure     with System execution privileges needed. User     interaction is not required for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-119770583(CVE-2020-27068)

  - In audit_free_lsm_field of auditfilter.c, there is a     possible bad kfree due to a logic error in     audit_data_to_entry. This could lead to local     escalation of privilege with no additional execution     privileges needed. User interaction is not needed for     exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-150693166References: Upstream     kernel(CVE-2020-0444)

  - In various methods of hid-multitouch.c, there is a     possible out of bounds write due to a missing bounds     check. This could lead to local escalation of privilege     with no additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-162844689References: Upstream kernel(CVE-2020-0465)

  - Use-after-free vulnerability in fs/block_dev.c in the     Linux kernel before 5.8 allows local users to gain     privileges or cause a denial of service by leveraging     improper access to a certain error     field.(CVE-2020-15436)

  - The Linux kernel before version 5.8 is vulnerable to a     NULL pointer dereference in     drivers/tty/serial/8250/8250_core.c:serial8250_isa_init
    _ports() that allows local users to cause a denial of     service by using the p->serial_in pointer which     uninitialized.(CVE-2020-15437)

  - A flaw was found in the Linux kernels implementation of     MIDI, where an attacker with a local account and the     permissions to issue an ioctl commands to midi devices,     could trigger a use-after-free. A write to this     specific memory while freed and before use could cause     the flow of execution to change and possibly allow for     memory corruption or privilege     escalation.(CVE-2020-27786)

  - No description is available for this     CVE.(CVE-2020-27815)

  - NULL-ptr deref in the spk_ttyio_receive_buf2() function     in spk_ttyio.c(CVE-2020-27830)

  - An issue was discovered in __split_huge_pmd in     mm/huge_memory.c in the Linux kernel before 5.7.5. The     copy-on-write implementation can grant unintended write     access because of a race condition in a THP mapcount     check, aka CID-c444eb564fb1.(CVE-2020-29368)

  - An issue was discovered in kmem_cache_alloc_bulk in     mm/slub.c in the Linux kernel before 5.5.11. The     slowpath lacks the required TID increment, aka     CID-fd4d9c7d0c71.(CVE-2020-29370)

  - An issue was discovered in romfs_dev_read in     fs/romfs/storage.c in the Linux kernel before 5.8.4.
    Uninitialized memory leaks to userspace, aka     CID-bcf85fcedfdd.(CVE-2020-29371)

  - A locking inconsistency issue was discovered in the tty     subsystem of the Linux kernel through 5.9.13.
    drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may     allow a read-after-free attack against TIOCGSID, aka     CID-c8bcd9c5be24.(CVE-2020-29660)

  - A locking issue was discovered in the tty subsystem of     the Linux kernel through 5.9.13.
    drivers/tty/tty_jobctrl.c allows a use-after-free     attack against TIOCSPGRP, aka     CID-54ffccbf053b.(CVE-2020-29661)

  - A slab-out-of-bounds read in fbcon in the Linux kernel     before 5.9.7 could be used by local attackers to read     privileged information or potentially crash the kernel,     aka CID-3c4e0dff2095. This occurs because     KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for     manipulations such as font height.(CVE-2020-28974)

  - An issue was discovered in the Linux kernel through     5.9.1, as used with Xen through 4.14.x. Guest OS users     can cause a denial of service (host OS hang) via a high     rate of events to dom0, aka     CID-e99502f76271.(CVE-2020-27673)

  - An issue was discovered in     drivers/accessibility/speakup/spk_ttyio.c in the Linux     kernel through 5.9.9. Local attackers on systems with     the speakup driver could cause a local denial of     service attack, aka CID-d41227544427. This occurs     because of an invalid free when the line discipline is     used more than once.(CVE-2020-28941)

  - An issue was discovered in the Linux kernel through     5.9.1, as used with Xen through 4.14.x.
    drivers/xen/events/events_base.c allows event-channel     removal during the event-handling loop (a race     condition). This can cause a use-after-free or NULL     pointer dereference, as demonstrated by a dom0 crash     via events for an in-reconfiguration paravirtualized     device, aka CID-073d0552ead5.(CVE-2020-27675)

  - A buffer over-read (at the framebuffer layer) in the     fbcon code in the Linux kernel before 5.8.15 could be     used by local attackers to read kernel memory, aka     CID-6735b4632def.(CVE-2020-28915)

  - A flaw was found in the Linux kernel. A use-after-free     memory flaw was found in the perf subsystem allowing a     local attacker with permission to monitor perf events     to corrupt memory and possibly escalate privileges. The     highest threat from this vulnerability is to data     confidentiality and integrity as well as system     availability.(CVE-2020-14351)

  - A flaw in the way reply ICMP packets are limited in the     Linux kernel functionality was found that allows to     quickly scan open UDP ports. This flaw allows an     off-path remote user to effectively bypassing source     port UDP randomization. The highest threat from this     vulnerability is to confidentiality and possibly     integrity, because software that relies on UDP source     port randomization are indirectly affected as well.
    Kernel versions before 5.10 may be vulnerable to this     issue.(CVE-2020-25705)

  - No description is available for this     CVE.(CVE-2020-25668)

  - No description is available for this     CVE.(CVE-2020-25669)

  - A flaw was found in the way RTAS handled memory     accesses in userspace to kernel communication. On a     locked down (usually due to Secure Boot) guest system     running on top of PowerVM or KVM hypervisors (pseries     platform) a root like local user could use this flaw to     further increase their privileges to that of a running     kernel.(CVE-2020-27777)

  - kernel: perf_event_parse_addr_filter     memory(CVE-2020-25704)

  - Insufficient access control in the Linux kernel driver     for some Intel(R) Processors may allow an authenticated     user to potentially enable information disclosure via     local access.(CVE-2020-8694)

  - A flaw was found in the Linux kernel. A use-after-free     was found in the way the console subsystem was using     ioctls KDGKBSENT and KDSKBSENT. A local user could use     this flaw to get read memory access out of bounds. The     highest threat from this vulnerability is to data     confidentiality.(CVE-2020-25656)

  - In kbd_keycode of keyboard.c, there is a possible out     of bounds write due to a missing bounds check. This     could lead to local escalation of privilege with no     additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-144161459(CVE-2020-0431)

  - A flaw was found in the HDLC_PPP module of the Linux     kernel in versions before 5.9-rc7. Memory corruption     and a read overflow is caused by improper input     validation in the ppp_cp_parse_cr function which can     cause the system to crash or cause a denial of service.
    The highest threat from this vulnerability is to data     confidentiality and integrity as well as system     availability.(CVE-2020-25643)

  - A flaw was found in the Linux kernel in versions before     5.9-rc7. Traffic between two Geneve endpoints may be     unencrypted when IPsec is configured to encrypt traffic     for the specific UDP port used by the GENEVE tunnel     allowing anyone between the two endpoints to read the     traffic unencrypted. The main threat from this     vulnerability is to data     confidentiality.(CVE-2020-25645)

  - Vulnerability Summary for     CVE-2020-12351(CVE-2020-12351)

  - Vulnerability Summary for     CVE-2020-12352(CVE-2020-12352)

  - Vulnerability Summary for     CVE-2020-24490(CVE-2020-24490)

  - A missing CAP_NET_RAW check in NFC socket creation in     net/nfc/rawsock.c in the Linux kernel before 5.8.2     could be used by local attackers to create raw sockets,     bypassing security mechanisms, aka     CID-26896f01467a.(CVE-2020-26088)

  - A flaw was found in the Linux kernel's implementation     of biovecs in versions before 5.9-rc7. A zero-length     biovec request issued by the block subsystem could     cause the kernel to enter an infinite loop, causing a     denial of service. This flaw allows a local attacker     with basic privileges to issue requests to a block     device, resulting in a denial of service. The highest     threat from this vulnerability is to system     availability.(CVE-2020-25641)

  - In skb_to_mamac of networking.c, there is a possible     out of bounds write due to an integer overflow. This     could lead to local escalation of privilege with no     additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-143560807(CVE-2020-0432)

  - A race condition between hugetlb sysctl handlers in     mm/hugetlb.c in the Linux kernel before 5.8.8 could be     used by local attackers to corrupt memory, cause a NULL     pointer dereference, or possibly have unspecified other     impact, aka CID-17743798d812.(CVE-2020-25285)

  - A flaw was found in the Linux kernel in versions from     2.2.3 through 5.9.rc5. When changing screen size, an     out-of-bounds memory write can occur leading to memory     corruption or a denial of service. This highest threat     from this vulnerability is to system     availability.(CVE-2020-14390)

  - A flaw was found in the Linux kernel before 5.9-rc4.
    Memory corruption can be exploited to gain root     privileges from unprivileged processes. The highest     threat from this vulnerability is to data     confidentiality and integrity.(CVE-2020-14386)

  - Insufficient input validation in i40e driver for     Intel(R) Ethernet 700 Series Controllers versions     before 7.0 may allow an authenticated user to     potentially enable a denial of service via local     access.(CVE-2019-0147)

  - A TOCTOU mismatch in the NFS client code in the Linux     kernel before 5.8.3 could be used by local attackers to     corrupt memory or possibly have unspecified other     impact because a size check is in fs/nfs/nfs4proc.c     instead of fs/nfs/nfs4xdr.c, aka     CID-b4487b935452.(CVE-2020-25212)

  - A flaw was found in the Linux kernel before 5.9-rc4. A     failure of the file system metadata validator in XFS     can cause an inode with a valid, user-creatable     extended attribute to be flagged as corrupt. This can     lead to the filesystem being shutdown, or otherwise     rendered inaccessible until it is remounted, leading to     a denial of service. The highest threat from this     vulnerability is to system     availability.(CVE-2020-14385)

  - In uvc_scan_chain_forward of uvc_driver.c, there is a     possible linked list corruption due to an unusual root     cause. This could lead to local escalation of privilege     in the kernel with no additional execution privileges     needed. User interaction is not needed for     exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-111893654References: Upstream     kernel(CVE-2020-0404)

  - The rbd block device driver in drivers/block/rbd.c in     the Linux kernel through 5.8.9 used incomplete     permission checking for access to rbd devices, which     could be leveraged by local attackers to map or unmap     rbd block devices, aka     CID-f44d04e696fe.(CVE-2020-25284)

  - A memory out-of-bounds read flaw was found in the Linux     kernel before 5.9-rc2 with the ext3/ext4 file system,     in the way it accesses a directory with broken     indexing. This flaw allows a local user to crash the     system if the directory exists. The highest threat from     this vulnerability is to system     availability.(CVE-2020-14314)

  - A flaw null pointer dereference in the Linux kernel     cgroupv2 subsystem in versions before 5.7.10 was found     in the way when reboot the system. A local user could     use this flaw to crash the system or escalate their     privileges on the system.(CVE-2020-24394)

  - A flaw was found in the Linux kernel's implementation     of the invert video code on VGA consoles when a local     attacker attempts to resize the console, calling an     ioctl VT_RESIZE, which causes an out-of-bounds write to     occur. This flaw allows a local user with access to the     VGA console to crash the system, potentially escalating     their privileges on the system. The highest threat from     this vulnerability is to data confidentiality and     integrity as well as system     availability.(CVE-2020-14331)

  - The Linux kernel, as used in Red Hat Enterprise Linux     7, kernel-rt, and Enterprise MRG 2 and when booted with     UEFI Secure Boot enabled, allows local users to bypass     intended securelevel/secureboot restrictions by     leveraging improper handling of secure_boot flag across     kexec reboot.(CVE-2015-7837)

  - In the Linux kernel through 5.8.7, local attackers able     to inject conntrack netlink configuration could     overflow a local buffer, causing crashes or triggering     use of incorrect protocol numbers in     ctnetlink_parse_tuple_filter in     net/netfilter/nf_conntrack_netlink.c, aka     CID-1cc5ef91d2ff.(CVE-2020-25211)

  - A flaw null pointer dereference in the Linux kernel     cgroupv2 subsystem in versions before 5.7.10 was found     in the way when reboot the system. A local user could     use this flaw to crash the system or escalate their     privileges on the system.(CVE-2020-14356)

  - Buffer overflow in i40e driver for Intel(R) Ethernet     700 Series Controllers versions before 7.0 may allow an     authenticated user to potentially enable an escalation     of privilege via local access.(CVE-2019-0145)

  - 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 VFIO PCI driver in the Linux kernel through 5.6.13     mishandles attempts to access disabled memory     space.(CVE-2020-12888)

  - In the Linux kernel through 5.7.6, usbtest_disconnect     in drivers/usb/misc/usbtest.c has a memory leak, aka     CID-28ebeb8db770.(CVE-2020-15393)

  - A logic bug was found in the Linux kernels     implementation of SSBD. A bug in the logic handling can     allow an attacker with a local account to disable SSBD     protection during a context switch when additional     speculative execution mitigations are in     place.(CVE-2020-10766)

  - The prctl() function can be used to enable indirect     branch speculation even after it has been disabled.
    This same call will incorrectly report it being 'force     disabled' when it is not.(CVE-2020-10768)

  - A flaw was found in the Linux kernel's implementation     of the Enhanced IBPB (Indirect Branch Prediction     Barrier). The IBPB mitigation will be disabled when     STIBP is not available or when the Enhanced Indirect     Branch Restricted Speculation (IBRS) is available. This     flaw allows a local attacker to perform a Spectre V2     style attack when this configuration is active. The     highest threat from this vulnerability is to     confidentiality.(CVE-2020-10767)

  - A flaw was found in the ZRAM kernel module, where a     user with a local account and the ability to read the     /sys/class/zram-control/hot_add file can create ZRAM     device nodes in the /dev/ directory. This read     allocates kernel memory and is not accounted for a user     that triggers the creation of that ZRAM device. With     this vulnerability, continually reading the device may     consume a large amount of system memory and cause the     Out-of-Memory (OOM) killer to activate and terminate     random userspace processes, possibly making the system     inoperable.(CVE-2020-10781)

  - A flaw was found in the Linux kernel. An index buffer     overflow during Direct IO write leading to the NFS     client to crash. In some cases, a reach out of the     index after one memory allocation by kmalloc will cause     a kernel panic. The highest threat from this     vulnerability is to data confidentiality and system     availability.(CVE-2020-10742)

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 kernel package contains the Linux kernel (vmlinuz),     the core of any Linux operating system. The kernel     handles the basic functions of the operating system:
    memory allocation, process allocation, device input and     output, etc. Security Fix(es):In uvc_scan_chain_forward     of uvc_driver.c, there is a possible linked list     corruption due to an unusual root cause. This could     lead to local escalation of privilege in the kernel     with no additional execution privileges needed. User     interaction is not needed for exploitation.Product:
    AndroidVersions: Android kernelAndroid ID:
    A-111893654References: Upstream kernel.(CVE-2020-0404)A     flaw was found in the Linux kernel in versions from     2.2.3 through 5.9.rc5. When changing screen size, an     out-of-bounds memory write can occur leading to memory     corruption or a denial of service. This highest threat     from this vulnerability is to system     availability.(CVE-2020-14390)A TOCTOU mismatch in the     NFS client code in the Linux kernel before 5.8.3 could     be used by local attackers to corrupt memory or     possibly have unspecified other impact because a size     check is in fs4proc.c instead of fsfs4xdr.c, aka     CID-b4487b935452.(CVE-2020-25212)A flaw was found in     the Linux kernel before 5.9-rc4. A failure of the file     system metadata validator in XFS can cause an inode     with a valid, user-creatable extended attribute to be     flagged as corrupt. This can lead to the filesystem     being shutdown, or otherwise rendered inaccessible     until it is remounted, leading to a denial of service.
    The highest threat from this vulnerability is to system     availability.(CVE-2020-14385)In the Linux kernel before     5.7.8, fsfsd/vfs.c (in the NFS server) can set     incorrect permissions on new filesystem objects when     the filesystem lacks ACL support, aka CID-22cf8419f131.
    This occurs because the current umask is not     considered.(CVE-2020-24394)The rbd block device driver     in drivers/block/rbd.c in the Linux kernel through     5.8.9 used incomplete permission checking for access to     rbd devices, which could be leveraged by local     attackers to map or unmap rbd block devices, aka     CID-f44d04e696fe.(CVE-2020-25284)An issue was     discovered in net/ipv4/sysctl_net_ipv4.c in the Linux     kernel before 5.0.11. There is a net/ipv4/tcp_input.c     signed integer overflow in tcp_ack_update_rtt() when     userspace writes a very large integer to /proc/sys     et/ipv4/tcp_min_rtt_wlen, leading to a denial of     service or possibly unspecified other impact, aka     CID-19fad20d15a6.(CVE-2019-18805)Insufficient input     validation in i40e driver for Intel(R) Ethernet 700     Series Controllers versions before 7.0 may allow an     authenticated user to potentially enable a denial of     service via local access.(CVE-2019-0147)Buffer overflow     in i40e driver for Intel(R) Ethernet 700 Series     Controllers versions before 7.0 may allow an     authenticated user to potentially enable an escalation     of privilege via local access.(CVE-2020-0145)A race     condition between hugetlb sysctl handlers in     mm/hugetlb.c in the Linux kernel before 5.8.8 could be     used by local attackers to corrupt memory, cause a NULL     pointer dereference, or possibly have unspecified other     impact, aka CID-17743798d812.(CVE-2020-25285)A memory     out-of-bounds read flaw was found in the Linux kernel     before 5.9-rc2 with the ext3/ext4 file system, in the     way it accesses a directory with broken indexing. This     flaw allows a local user to crash the system if the     directory exists. The highest threat from this     vulnerability is to system     availability.(CVE-2020-14314)A missing CAP_NET_RAW     check in NFC socket creation in net fc/rawsock.c in the     Linux kernel before 5.8.2 could be used by local     attackers to create raw sockets, bypassing security     mechanisms, aka CID-26896f01467a.(CVE-2020-26088)A flaw     was found in the HDLC_PPP module of the Linux kernel in     versions before 5.9-rc7. Memory corruption and a read     overflow is caused by improper input validation in the     ppp_cp_parse_cr function which can cause the system to     crash or cause a denial of service. The highest threat     from this vulnerability is to data confidentiality and     integrity as well as system     availability.(CVE-2020-25643)The Linux kernel, as used     in Red Hat Enterprise Linux 7, kernel-rt, and     Enterprise MRG 2 and when booted with UEFI Secure Boot     enabled, allows local users to bypass intended     securelevel/secureboot restrictions by leveraging     improper handling of secure_boot flag across kexec     reboot.(CVE-2015-7837)A flaw was found in the Linux     kernel's implementation of biovecs in versions before     5.9-rc7. A zero-length biovec request issued by the     block subsystem could cause the kernel to enter an     infinite loop, causing a denial of service. This flaw     allows a local attacker with basic privileges to issue     requests to a block device, resulting in a denial of     service. The highest threat from this vulnerability is     to system availability.(CVE-2020-25641)A flaw was found     in the Linux kernel before 5.9-rc4. Memory corruption     can be exploited to gain root privileges from     unprivileged processes. The highest threat from this     vulnerability is to data confidentiality and     integrity.(CVE-2020-14386)A flaw was found in the Linux     kernel in versions before 5.9-rc7. Traffic between two     Geneve endpoints may be unencrypted when IPsec is     configured to encrypt traffic for the specific UDP port     used by the GENEVE tunnel allowing anyone between the     two endpoints to read the traffic unencrypted. The main     threat from this vulnerability is to data     confidentiality.(CVE-2020-25645)perf: Fix race in     perf_mmap_close function.(CVE-2020-14351)An information     leak flaw was found in the way the Linux kernel's     Bluetooth stack implementation handled initialization     of stack memory when handling certain AMP packets. A     remote attacker in adjacent range could use this flaw     to leak small portions of stack memory on the system by     sending a specially crafted AMP packets. The highest     threat from this vulnerability is to data     confidentiality.(CVE-2020-12352)A flaw was found in the     way the Linux kernel Bluetooth implementation handled     L2CAP packets with A2MP CID. A remote attacker in     adjacent range could use this flaw to crash the system     causing denial of service or potentially execute     arbitrary code on the system by sending a specially     crafted L2CAP packet. The highest threat from this     vulnerability is to data confidentiality and integrity     as well as system availability.(CVE-2020-12351)A heap     buffer overflow flaw was found in the way the Linux     kernel's Bluetooth implementation processed extended     advertising report events. This flaw allows a remote     attacker in an adjacent range to crash the system,     causing a denial of service or to potentially execute     arbitrary code on the system by sending a specially     crafted Bluetooth packet. The highest threat from this     vulnerability is to confidentiality, integrity, as well     as system availability.(CVE-2020-24490)** 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-2020-25656)In skb_to_mamac of     networking.c, there is a possible out of bounds write     due to an integer overflow. This could lead to local     escalation of privilege with no additional execution     privileges needed. User interaction is not needed for     exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-143560807(CVE-2020-0432)A     slab-out-of-bounds read in fbcon in the Linux kernel     before 5.9.7 could be used by local attackers to read     privileged information or potentially crash the kernel,     aka CID-3c4e0dff2095. This occurs because     KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for     manipulations such as font height.(CVE-2020-28974)A     flaw memory leak in the Linux kernel performance     monitoring subsystem was found in the way if using     PERF_EVENT_IOC_SET_FILTER. A local user could use this     flaw to starve the resources causing denial of     service.(CVE-2020-25704)A buffer over-read (at the     framebuffer layer) in the fbcon code in the Linux     kernel before 5.8.15 could be used by local attackers     to read kernel memory, aka     CID-6735b4632def.(CVE-2020-28915)There is a     use-after-free problem seen due to a race condition     between the release of ptp_clock and cdev while     resource deallocation. When a (high privileged) process     allocates a ptp device file (like /dev/ptpX) and     voluntarily goes to sleep. During this time if the     underlying device is removed, it can cause an     exploitable condition as the process wakes up to     terminate and clean all attached files. The system     crashes due to the cdev structure being invalid (as     already freed) which is pointed to by the     inode.(CVE-2020-10690)A device tracking vulnerability     was found in the flow_dissector feature in the Linux     kernel. This flaw occurs because the auto flowlabel of     the UDP IPv6 packet relies on a 32-bit hashmd value as     a secret, and jhash (instead of siphash) is used. The     hashmd value remains the same starting from boot time     and can be inferred by an     attacker.(CVE-2019-18282)Use-after-free vulnerability     in fs/block_dev.c in the Linux kernel before 5.8 allows     local users to gain privileges or cause a denial of     service by leveraging improper access to a certain     error field.(CVE-2020-15436)The Linux kernel before     version 5.8 is vulnerable to a NULL pointer dereference     in     drivers/tty/serial/8250/8250_core.c:serial8250_isa_init
    _ports() that allows local users to cause a denial of     service by using the p->serial_in pointer which     uninitialized.(CVE-2020-15437)An issue was discovered     in kmem_cache_alloc_bulk in mm/slub.c in the Linux     kernel before 5.5.11. The slowpath lacks the required     TID increment, aka CID-fd4d9c7d0c71.(CVE-2020-29370)An     issue was discovered in the Linux kernel before 5.2.6.
    On NUMA systems, the Linux fair scheduler has a     use-after-free in show_numa_stats() because NUMA fault     statistics are inappropriately freed, aka     CID-16d51a590a8c.(CVE-2019-20934)An issue was     discovered in romfs_dev_read in fs/romfs/storage.c in     the Linux kernel before 5.8.4. Uninitialized memory     leaks to userspace, aka     CID-bcf85fcedfdd.(CVE-2020-29371)An issue was     discovered in the Linux kernel before 5.7.3, related to     mm/gup.c and mm/huge_memory.c. The get_user_pages (aka     gup) implementation, when used for a copy-on-write     page, does not properly consider the semantics of read     operations and therefore can grant unintended write     access, aka CID-17839856fd58.(CVE-2020-29374)A flaw was     found in the way RTAS handled memory accesses in     userspace to kernel communication. On a locked down     (usually due to Secure Boot) guest system running on     top of PowerVM or KVM hypervisors (pseries platform) a     root like local user could use this flaw to further     increase their privileges to that of a running     kernel.(CVE-2020-27777)In kbd_keycode of keyboard.c,     there is a possible out of bounds write due to a     missing bounds check. This could lead to local     escalation of privilege with no additional execution     privileges needed. User interaction is not needed for     exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-144161459(CVE-2020-0431)

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 version of kernel installed on the remote host is prior to 5.4.80-40.140. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2022-018 advisory.

  - A flaw was found in the Linux kernel. A use-after-free memory flaw was found in the perf subsystem     allowing a local attacker with permission to monitor perf events to corrupt memory and possibly escalate     privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2020-14351)

  - A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was     using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of     bounds. The highest threat from this vulnerability is to data confidentiality. (CVE-2020-25656)

  - A flaw was found in Linux Kernel because access to the global variable fg_console is not properly     synchronized leading to a use after free in con_font_op. (CVE-2020-25668)

  - A flaw memory leak in the Linux kernel performance monitoring subsystem was found in the way if using     PERF_EVENT_IOC_SET_FILTER. A local user could use this flaw to starve the resources causing denial of     service. (CVE-2020-25704)

  - An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users     can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.
    (CVE-2020-27673)

  - An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x.
    drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race     condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash     via events for an in-reconfiguration paravirtualized device, aka CID-073d0552ead5. (CVE-2020-27675)

  - A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to     read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because     KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height. (CVE-2020-28974)

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

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

CVE-2020-0427

Elena Petrova reported a bug in the pinctrl subsystem that can lead to a use-after-free after a device is renamed. The security impact of this is unclear.

CVE-2020-8694

Multiple researchers discovered that the powercap subsystem allowed all users to read CPU energy meters, by default. On systems using Intel CPUs, this provided a side channel that could leak sensitive information between user processes, or from the kernel to user processes. The energy meters are now readable only by root, by default.

This issue can be mitigated by running :

chmod go-r /sys/devices/virtual/powercap/*/*/energy_uj

This needs to be repeated each time the system is booted with an unfixed kernel version.

CVE-2020-14351

A race condition was discovered in the performance events subsystem, which could lead to a use-after-free. A local user permitted to access performance events could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

Debian's kernel configuration does not allow unprivileged users to access peformance events by default, which fully mitigates this issue.

CVE-2020-25645

A flaw was discovered in the interface driver for GENEVE encapsulated traffic when combined with IPsec. If IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel, tunneled data isn't correctly routed over the encrypted link and sent unencrypted instead.

CVE-2020-25656

Yuan Ming and Bodong Zhao discovered a race condition in the virtual terminal (vt) driver that could lead to a use-after-free. A local user with the CAP_SYS_TTY_CONFIG capability could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-25668

Yuan Ming and Bodong Zhao discovered a race condition in the virtual terminal (vt) driver that could lead to a use-after-free. A local user with access to a virtual terminal, or with the CAP_SYS_TTY_CONFIG capability, could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-25669

Bodong Zhao discovered a bug in the Sun keyboard driver (sunkbd) that could lead to a use-after-free. On a system using this driver, a local user could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-25704

kiyin(&#x5C39;&#x4EAE;) discovered a potential memory leak in the performance events subsystem. A local user permitted to access performance events could use this to cause a denial of service (memory exhaustion).

Debian's kernel configuration does not allow unprivileged users to access peformance events by default, which fully mitigates this issue.

CVE-2020-25705

Keyu Man reported that strict rate-limiting of ICMP packet transmission provided a side-channel that could help networked attackers to carry out packet spoofing. In particular, this made it practical for off-path networked attackers to 'poison' DNS caches with spoofed responses ('SAD DNS' attack).

This issue has been mitigated by randomising whether packets are counted against the rate limit.

CVE-2020-27673 / XSA-332

Julien Grall from Arm discovered a bug in the Xen event handling code.
Where Linux was used in a Xen dom0, unprivileged (domU) guests could cause a denial of service (excessive CPU usage or hang) in dom0.

CVE-2020-27675 / XSA-331

Jinoh Kang of Theori discovered a race condition in the Xen event handling code. Where Linux was used in a Xen dom0, unprivileged (domU) guests could cause a denial of service (crash) in dom0.

CVE-2020-28974

Yuan Ming discovered a bug in the virtual terminal (vt) driver that could lead to an out-of-bounds read. A local user with access to a virtual terminal, or with the CAP_SYS_TTY_CONFIG capability, could possibly use this to obtain sensitive information from the kernel or to cause a denial of service (crash).

The specific ioctl operation affected by this bug (KD_FONT_OP_COPY) has been disabled, as it is not believed that any programs depended on it.

For Debian 9 stretch, these problems have been fixed in version 4.9.246-2.

We recommend that you upgrade your linux packages.

For the detailed security status of linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux

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 Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-3138 advisory.

    - x86/sev: Harden #VC instruction emulation somewhat (Vitaly Kuznetsov) [RHEL-30040] {CVE-2024-25743     CVE-2024-25742}
    - mm/sparsemem: fix race in accessing memory_section->usage (Waiman Long) [RHEL-28875 RHEL-28876]     {CVE-2023-52489}
    - mm: use __pfn_to_section() instead of open coding it (Waiman Long) [RHEL-28875] {CVE-2023-52489}
    - fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super (Audra Mitchell) [RHEL-20614]     {CVE-2024-0841}
    - sched/membarrier: reduce the ability to hammer on sys_membarrier (Wander Lairson Costa) [RHEL-23430]     {CVE-2024-26602}
    - smb: client: fix OOB in receive_encrypted_standard() (Scott Mayhew) [RHEL-21685] {CVE-2024-0565}
    - gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump (Andrew Price) [RHEL-26501] {CVE-2023-52448}
    - smb: client: fix parsing of SMB3.1.1 POSIX create context (Paulo Alcantara) [RHEL-26241]     {CVE-2023-52434}
    - smb: client: fix potential OOBs in smb2_parse_contexts() (Paulo Alcantara) [RHEL-26241] {CVE-2023-52434}
    - ext4: fix kernel BUG in 'ext4_write_inline_data_end()' (Carlos Maiolino) [RHEL-23386] {CVE-2021-33631}
    - netfilter: nf_tables: reject QUEUE/DROP verdict parameters (Florian Westphal) [RHEL-23506]     {CVE-2024-1086}
    - Bluetooth: Add more enc key size check (David Marlin) [RHEL-19666] {CVE-2023-24023}
    - Bluetooth: Normalize HCI_OP_READ_ENC_KEY_SIZE cmdcmplt (David Marlin) [RHEL-19666] {CVE-2023-24023}
    - drm/amdgpu: Fix potential fence use-after-free v2 (Michel Danzer) [RHEL-22504] {CVE-2023-51042}
    - serial: core: return early on unsupported ioctls (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - lib/hexdump: make print_hex_dump_bytes() a nop on !DEBUG builds (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix race condition in status line change on dead connections (Wander Lairson Costa)     [RHEL-19955] {CVE-2023-6546}
    - Revert 'tty: n_gsm: fix UAF in gsm_cleanup_mux' (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix the UAF caused by race condition in gsm_cleanup_mux (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix UAF in gsm_cleanup_mux (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: add parameter negotiation support (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: add parameters used with parameter negotiation (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: introduce macro for minimal unit size (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: name the debug bits (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: introduce gsm_control_command() function (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: replace use of gsm_read_ea() with gsm_read_ea_val() (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: name gsm tty device minors (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: initialize more members at gsm_alloc_mux() (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: add sanity check for gsm->receive in gsm_receive_buf() (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix flow control handling in tx path (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix resource allocation order in gsm_activate_mux() (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix deadlock and link starvation in outgoing data path (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix race condition in gsmld_write() (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix non flow control frames during mux flow off (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix missing timer to handle stalled links (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix wrong queuing behavior in gsm_dlci_data_output() (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix tty registration before control channel open (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix user open not possible at responder until initiator open (Wander Lairson Costa)     [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: Debug output allocation must use GFP_ATOMIC (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: Fix packet data hex dump output (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix buffer over-read in gsm_dlci_data() (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix sometimes uninitialized warning in gsm_dlci_modem_output() (Wander Lairson Costa)     [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix software flow control handling (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix invalid use of MSC in advanced option (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix broken virtual tty handling (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix missing update of modem controls after DLCI open (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix reset fifo race condition (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix missing tty wakeup in convergence layer type 2 (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix wrong signal octets encoding in MSC (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix wrong command frame length field encoding (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix wrong command retry handling (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix missing explicit ldisc flush (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix wrong DLCI release order (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix insufficient txframe size (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix frame reception handling (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix wrong signal octet encoding in convergence layer type 2 (Wander Lairson Costa)     [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix mux cleanup after unregister tty device (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix decoupled mux resource (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix restart handling via CLD command (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix deadlock in gsmtty_open() (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix wrong modem processing in convergence layer type 2 (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix wrong tty control line for flow control (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix NULL pointer access due to DLCI release (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: fix encoding of command/response bit (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: fix SW flow control encoding/handling (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: remove tty parameter from mxser_receive_chars_new() (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - mxser: don't throttle manually (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: make mxser_port::ldisc_stop_rx a bool (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: Don't ignore write return value in gsmld_output() (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: clean up indenting in gsm_queue() (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: Save dlci address open status when config requester (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: Modify gsmtty driver register method when config requester (Wander Lairson Costa)     [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: Delete gsmtty open SABM frame when config requester (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: Modify CR,PF bit printk info when config requester (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: Modify CR,PF bit when config requester (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: stop using alloc_tty_driver (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: don't store semi-state into tty drivers (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - hvsi: don't panic on tty_register_driver failure (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - amiserial: switch rs_table to a single state (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - amiserial: expand 'custom' (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - amiserial: use memset to zero serial_state (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - amiserial: remove serial_* strings (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: drop mxser_port::custom_divisor (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: drop mxser_port::baud_base (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: remove unused mxser_port::stop_rx (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: don't allocate MXSER_PORTS + 1 (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: remove cnt from mxser_receive_chars (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: remove MOXA_GETMSTATUS ioctl (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: remove MOXA_GETDATACOUNT ioctl (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: remove MOXA_CHKPORTENABLE ioctl (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: remove MOXA_ASPP_LSTATUS ioctl (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: remove MOXA_ASPP_MON and friends (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: remove MOXA_SET_BAUD_METHOD ioctl (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: remove MOXA_GET_MAJOR deprecated ioctl (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: drop unused MOXA_DIAGNOSE macro (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: drop UART_MCR_AFE and UART_LSR_SPECIAL defines (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - mxser: remove else from LSR bits checks (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: extract mxser_receive_chars_old (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: extract mxser_receive_chars_new (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: simplify mxser_interrupt and drop mxser_board::vector_mask (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - mxser: extract port ISR (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: cleanup LSR handling in mxser_receive_chars (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: remove nonsense from ISR (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: drop constant board::uart_type (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: introduce enum mxser_must_hwid (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: rename mxser_board::chip_flag to must_hwid (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: rename CheckIsMoxaMust to mxser_get_must_hwid (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: cleanup Gpci_uart_info struct (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: integrate mxser.h into .c (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - mxser: drop ISA support (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - n_gsm: use goto-failpaths in gsm_init (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: mxser: drop low-latency workaround (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: check error while registering tty devices (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: mxser: fix TIOCSSERIAL jiffies conversions (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm, remove duplicates of parameters (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: do not check tty_unregister_driver's return value (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: nozomi, remove init/exit messages (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty_port: drop last traces of low_latency (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: Demote obvious abuse of kernel-doc and supply other missing docss (Wander Lairson Costa)     [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm, eliminate indirection for gsm->{output,error}() (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: Fix bogus i++ in gsm_data_kick (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: Remove unnecessary test in gsm_print_packet() (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: Fix waking up upper tty layer when room available (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: Fix SOF skipping (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: Improve debug output (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - n_gsm: switch constipated to bool (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - n_gsm: switch throttled to bool (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - n_gsm: switch dead to bool (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - n_gsm: introduce enum gsm_dlci_mode (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - n_gsm: introduce enum gsm_dlci_state (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - n_gsm: drop unneeded gsm_dlci->fifo field (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: Replace zero-length array with flexible-array member (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: avoid recursive locking with async port hangup (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: add helpers to convert mux-num to/from tty-base (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - docs: serial: move it to the driver-api (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - docs: serial: convert docs to ReST and rename to *.rst (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - tty: n_gsm: Mark expected switch fall-throughs (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - n_gsm: Constify u8 and unsigned char usage (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty: n_gsm: Add copy_config() and gsm_config() to prepare for serdev (Wander Lairson Costa) [RHEL-19955]     {CVE-2023-6546}
    - mxser: switch to ->[sg]et_serial() (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - amiserial: switch to ->[sg]et_serial() (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - tty/serial_core: add ISO7816 infrastructure (Wander Lairson Costa) [RHEL-19955] {CVE-2023-6546}
    - drm/vmwgfx: Fix possible null pointer derefence with invalid contexts (Jocelyn Falempe) [RHEL-3179]     {CVE-2022-38096}
    - atm: Fix Use-After-Free in do_vcc_ioctl (Guillaume Nault) [RHEL-21179] {CVE-2023-51780}
    - Bluetooth: Fix double free in hci_conn_cleanup (David Marlin) [RHEL-2555] {CVE-2023-28464}
    - kobject: Fix slab-out-of-bounds in fill_kobj_path() (Waiman Long) [RHEL-20926] {CVE-2023-45863}
    - kobject: modify kobject_get_path() to take a const * (Waiman Long) [RHEL-20926] {CVE-2023-45863}
    - kobject: Remove docstring reference to kset (Waiman Long) [RHEL-20926] {CVE-2023-45863}
    - nvmet-tcp: Fix the H2C expected PDU len calculation (Maurizio Lombardi) [RHEL-19155 RHEL-19161     RHEL-19167] {CVE-2023-6536 CVE-2023-6535 CVE-2023-6356}
    - nvmet-tcp: remove boilerplate code (Maurizio Lombardi) [RHEL-19155 RHEL-19161 RHEL-19167] {CVE-2023-6536     CVE-2023-6535 CVE-2023-6356}
    - nvmet-tcp: fix a crash in nvmet_req_complete() (Maurizio Lombardi) [RHEL-19155 RHEL-19161 RHEL-19167]     {CVE-2023-6536 CVE-2023-6535 CVE-2023-6356}
    - nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length (Maurizio Lombardi) [RHEL-19155     RHEL-19161 RHEL-19167] {CVE-2023-6536 CVE-2023-6535 CVE-2023-6356}
    - ipv6: Remove extra counter pull before gc (Davide Caratti) [RHEL-21457] {CVE-2023-52340}
    - ipv6: remove max_size check inline with ipv4 (Davide Caratti) [RHEL-21457] {CVE-2023-52340}
    - net/dst: use a smaller percpu_counter batch for dst entries accounting (Davide Caratti) [RHEL-21457]     {CVE-2023-52340}
    - net: add a route cache full diagnostic message (Davide Caratti) [RHEL-21457] {CVE-2023-52340}
    - xfs: kill the XFS_IOC_{ALLOC,FREE}SP* ioctls (Andrey Albershteyn) [RHEL-8464] {CVE-2021-4155}
    - ida: Fix crash in ida_free when the bitmap is empty (Wander Lairson Costa) [RHEL-19681] {CVE-2023-6915}
    - net: tls, update curr on splice as well (Sabrina Dubroca) [RHEL-19065] {CVE-2024-0646}
    - smb: client: fix OOB in smbCalcSize() (Scott Mayhew) [RHEL-18990] {CVE-2023-6606}
    - smb: client: fix potential OOB in smb2_dump_detail() (Scott Mayhew) [RHEL-19144] {CVE-2023-6610}
    - smb: client: fix potential OOB in cifs_dump_detail() (Scott Mayhew) [RHEL-19144] {CVE-2023-6610}
    - mISDN: fix use-after-free bugs in l1oip timer handlers (Ricardo Robaina) [RHEL-2553 RHEL-2690]     {CVE-2022-3565}
    - netfilter: nf_tables: bail out on mismatching dynset and set expressions (Florian Westphal) [RHEL-19014]     {CVE-2023-6622}
    - netfilter: nft_set_pipapo: skip inactive elements during set walk (Florian Westphal) [RHEL-19721]     {CVE-2023-6817}
    - ipv4: igmp: fix refcnt uaf issue when receiving igmp query packet (Hangbin Liu) [RHEL-19794]     {CVE-2023-6932}
    - perf: Fix perf_event_validate_size() (Michael Petlan) [RHEL-17968] {CVE-2023-6931}
    - Bluetooth: af_bluetooth: Fix Use-After-Free in bt_sock_recvmsg (Ricardo Robaina) [RHEL-20743]     {CVE-2023-51779}

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.

The SUSE Linux Enterprise 15 SP1 RT kernel was updated to receive various security and bug fixes.

The following security bugs were fixed :

CVE-2020-25705: A flaw in the way reply ICMP packets are limited in was found that allowed to quickly scan open UDP ports. This flaw allowed an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software and services that rely on UDP source port randomization (like DNS) are indirectly affected as well. Kernel versions may be vulnerable to this issue (bsc#1175721, bsc#1178782).

CVE-2020-8694: Insufficient access control for some Intel(R) Processors may have allowed an authenticated user to potentially enable information disclosure via local access (bsc#1170415).

CVE-2020-25704: Fixed a memory leak in perf_event_parse_addr_filter() (bsc#1178393).

CVE-2020-25668: Fixed a use-after-free in con_font_op() (bsc#1178123).

CVE-2020-25656: Fixed a concurrency use-after-free in vt_do_kdgkb_ioctl (bnc#1177766).

CVE-2020-25285: Fixed a race condition between hugetlb sysctl handlers in mm/hugetlb.c (bnc#1176485).

CVE-2020-0430: Fixed an OOB read in skb_headlen of /include/linux/skbuff.h (bnc#1176723).

CVE-2020-14351: Fixed a race in the perf_mmap_close() function (bsc#1177086).

CVE-2020-16120: Fixed permission check to open real file when using overlayfs. It was possible to have a file not readable by an unprivileged user be copied to a mountpoint controlled by that user and then be able to access the file (bsc#1177470).

CVE-2020-12351: Fixed a type confusion while processing AMP packets aka 'BleedingTooth' aka 'BadKarma' (bsc#1177724).

CVE-2020-12352: Fixed an information leak when processing certain AMP packets aka 'BleedingTooth' (bsc#1177725).

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.

ID	Name	Product	Family	Published	Updated	Severity
149098	EulerOS 2.0 SP3 : kernel (EulerOS-SA-2021-1808)	Nessus	Huawei Local Security Checks	4/30/2021	1/3/2024	high
150536	SUSE SLES11 Security Update : kernel (SUSE-SU-2021:14630-1)	Nessus	SuSE Local Security Checks	6/10/2021	2/9/2023	critical
147512	EulerOS Virtualization 2.9.1 : kernel (EulerOS-SA-2021-1604)	Nessus	Huawei Local Security Checks	3/10/2021	2/9/2023	critical
144731	EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2021-1039)	Nessus	Huawei Local Security Checks	1/5/2021	5/11/2022	critical
160441	Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-018)	Nessus	Amazon Linux Local Security Checks	5/2/2022	9/5/2023	high
144494	Debian DLA-2494-1 : linux security update	Nessus	Debian Local Security Checks	12/21/2020	1/31/2024	high
198038	Oracle Linux 8 : kernel (ELSA-2024-3138)	Nessus	Oracle Linux Local Security Checks	5/28/2024	6/10/2024	critical
143802	SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3513-1)	Nessus	SuSE Local Security Checks	12/9/2020	12/5/2022	high

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