Security update for the Linux Kernel

SUSE Security Update: Security update for the Linux Kernel
Announcement ID: SUSE-SU-2022:2393-1
Rating: important
References: #1158266 #1162338 #1162369 #1173871 #1177282 #1194013 #1196901 #1198577 #1199426 #1199487 #1199507 #1199657 #1200059 #1200143 #1200144 #1200249 #1200571 #1200599 #1200604 #1200605 #1200608 #1200619 #1200692 #1200762 #1201050 #1201080 #1201251
Cross-References:CVE-2019-19377 CVE-2020-26541 CVE-2021-26341 CVE-2021-4157 CVE-2022-1184 CVE-2022-1679 CVE-2022-1729 CVE-2022-1974 CVE-2022-1975 CVE-2022-20132 CVE-2022-20141 CVE-2022-20154 CVE-2022-21499 CVE-2022-2318 CVE-2022-26365 CVE-2022-29900 CVE-2022-29901 CVE-2022-33740 CVE-2022-33741 CVE-2022-33742 CVE-2022-33981
Affected Products:
  • SUSE Linux Enterprise High Availability 12-SP4
  • SUSE Linux Enterprise High Performance Computing 12-SP4
  • SUSE Linux Enterprise Live Patching 12-SP4
  • SUSE Linux Enterprise Server 12-SP4
  • SUSE Linux Enterprise Server 12-SP4-LTSS
  • SUSE Linux Enterprise Server for SAP 12-SP4
  • SUSE OpenStack Cloud 9
  • SUSE OpenStack Cloud Crowbar 9

An update that solves 21 vulnerabilities and has 6 fixes is now available.

Description:

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

  • CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre like Branch Target Buffer attack, that can leak arbitrary kernel information (bsc#1199657).
  • CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages (bsc#1199487).
  • CVE-2022-20132: Fixed out of bounds read due to improper input validation in lg_probe and related functions of hid-lg.c (bsc#1200619).
  • CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692)
  • CVE-2022-20141: Fixed a possible use after free due to improper locking in ip_check_mc_rcu() (bsc#1200604).
  • CVE-2021-4157: Fixed an out of memory bounds write flaw in the NFS subsystem, related to the replication of files with NFS. A user could potentially crash the system or escalate privileges on the system (bsc#1194013).
  • CVE-2022-20154: Fixed a use after free due to a race condition in lock_sock_nested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599).
  • CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
  • CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
  • CVE-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050).
  • CVE-2020-26541: Enforce the secure boot forbidden signature database (aka dbx) protection mechanism. (bsc#1177282)
  • CVE-2022-1974: Fixed an use-after-free that could causes kernel crash by simulating an nfc device from user-space (bsc#1200144).
  • CVE-2022-1975: Fixed a bug that allows an attacker to crash the linux kernel by simulating nfc device from user-space (bsc#1200143).
  • CVE-2022-1729: Fixed a sys_perf_event_open() race condition against self (bsc#1199507).
  • CVE-2022-1184: Fixed a use-after-free and memory errors in ext4 when mounting and operating on a corrupted image (bsc#1198577).
  • CVE-2022-21499: Lock down kgdb to prohibit secure-boot bypass (bsc#1199426).
  • CVE-2019-19377: Fixed a user-after-free that could be triggered when an attacker mounts a crafted btrfs filesystem image (bsc#1158266).

The following non-security bugs were fixed:
  • btrfs: tree-checker: fix incorrect printk format (bsc#1200249).
  • exec: Force single empty string when argv is empty (bsc#1200571).

Special Instructions and Notes:

Please reboot the system after installing this update.

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE OpenStack Cloud Crowbar 9:
    zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2022-2393=1
  • SUSE OpenStack Cloud 9:
    zypper in -t patch SUSE-OpenStack-Cloud-9-2022-2393=1
  • SUSE Linux Enterprise Server for SAP 12-SP4:
    zypper in -t patch SUSE-SLE-SAP-12-SP4-2022-2393=1
  • SUSE Linux Enterprise Server 12-SP4-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2022-2393=1
  • SUSE Linux Enterprise Live Patching 12-SP4:
    zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2022-2393=1
  • SUSE Linux Enterprise High Availability 12-SP4:
    zypper in -t patch SUSE-SLE-HA-12-SP4-2022-2393=1

Package List:

  • SUSE OpenStack Cloud Crowbar 9 (x86_64):
    • kernel-default-4.12.14-95.102.1
    • kernel-default-base-4.12.14-95.102.1
    • kernel-default-base-debuginfo-4.12.14-95.102.1
    • kernel-default-debuginfo-4.12.14-95.102.1
    • kernel-default-debugsource-4.12.14-95.102.1
    • kernel-default-devel-4.12.14-95.102.1
    • kernel-default-devel-debuginfo-4.12.14-95.102.1
    • kernel-syms-4.12.14-95.102.1
  • SUSE OpenStack Cloud Crowbar 9 (noarch):
    • kernel-devel-4.12.14-95.102.1
    • kernel-macros-4.12.14-95.102.1
    • kernel-source-4.12.14-95.102.1
  • SUSE OpenStack Cloud 9 (noarch):
    • kernel-devel-4.12.14-95.102.1
    • kernel-macros-4.12.14-95.102.1
    • kernel-source-4.12.14-95.102.1
  • SUSE OpenStack Cloud 9 (x86_64):
    • kernel-default-4.12.14-95.102.1
    • kernel-default-base-4.12.14-95.102.1
    • kernel-default-base-debuginfo-4.12.14-95.102.1
    • kernel-default-debuginfo-4.12.14-95.102.1
    • kernel-default-debugsource-4.12.14-95.102.1
    • kernel-default-devel-4.12.14-95.102.1
    • kernel-default-devel-debuginfo-4.12.14-95.102.1
    • kernel-syms-4.12.14-95.102.1
  • SUSE Linux Enterprise Server for SAP 12-SP4 (ppc64le x86_64):
    • kernel-default-4.12.14-95.102.1
    • kernel-default-base-4.12.14-95.102.1
    • kernel-default-base-debuginfo-4.12.14-95.102.1
    • kernel-default-debuginfo-4.12.14-95.102.1
    • kernel-default-debugsource-4.12.14-95.102.1
    • kernel-default-devel-4.12.14-95.102.1
    • kernel-syms-4.12.14-95.102.1
  • SUSE Linux Enterprise Server for SAP 12-SP4 (x86_64):
    • kernel-default-devel-debuginfo-4.12.14-95.102.1
  • SUSE Linux Enterprise Server for SAP 12-SP4 (noarch):
    • kernel-devel-4.12.14-95.102.1
    • kernel-macros-4.12.14-95.102.1
    • kernel-source-4.12.14-95.102.1
  • SUSE Linux Enterprise Server 12-SP4-LTSS (aarch64 ppc64le s390x x86_64):
    • kernel-default-4.12.14-95.102.1
    • kernel-default-base-4.12.14-95.102.1
    • kernel-default-base-debuginfo-4.12.14-95.102.1
    • kernel-default-debuginfo-4.12.14-95.102.1
    • kernel-default-debugsource-4.12.14-95.102.1
    • kernel-default-devel-4.12.14-95.102.1
    • kernel-syms-4.12.14-95.102.1
  • SUSE Linux Enterprise Server 12-SP4-LTSS (noarch):
    • kernel-devel-4.12.14-95.102.1
    • kernel-macros-4.12.14-95.102.1
    • kernel-source-4.12.14-95.102.1
  • SUSE Linux Enterprise Server 12-SP4-LTSS (x86_64):
    • kernel-default-devel-debuginfo-4.12.14-95.102.1
  • SUSE Linux Enterprise Server 12-SP4-LTSS (s390x):
    • kernel-default-man-4.12.14-95.102.1
  • SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64):
    • kernel-default-kgraft-4.12.14-95.102.1
    • kernel-default-kgraft-devel-4.12.14-95.102.1
    • kgraft-patch-4_12_14-95_102-default-1-6.3.1
  • SUSE Linux Enterprise High Availability 12-SP4 (ppc64le s390x x86_64):
    • cluster-md-kmp-default-4.12.14-95.102.1
    • cluster-md-kmp-default-debuginfo-4.12.14-95.102.1
    • dlm-kmp-default-4.12.14-95.102.1
    • dlm-kmp-default-debuginfo-4.12.14-95.102.1
    • gfs2-kmp-default-4.12.14-95.102.1
    • gfs2-kmp-default-debuginfo-4.12.14-95.102.1
    • kernel-default-debuginfo-4.12.14-95.102.1
    • kernel-default-debugsource-4.12.14-95.102.1
    • ocfs2-kmp-default-4.12.14-95.102.1
    • ocfs2-kmp-default-debuginfo-4.12.14-95.102.1

References: