Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2022:2478-1
Rating:	important
References:	bsc#1066618 bsc#1146519 bsc#1194013 bsc#1196901 bsc#1199487 bsc#1199657 bsc#1200571 bsc#1200604 bsc#1200605 bsc#1200619 bsc#1200692 bsc#1201050 bsc#1201080
Cross-References:	CVE-2017-16525 CVE-2021-26341 CVE-2021-4157 CVE-2022-1679 CVE-2022-20132 CVE-2022-20141 CVE-2022-29900 CVE-2022-29901 CVE-2022-33981
CVSS scores:	CVE-2017-16525 ( SUSE ): 4.6 CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2017-16525 ( NVD ): 6.6 CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2021-26341 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2021-26341 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2021-4157 ( SUSE ): 3.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L CVE-2021-4157 ( NVD ): 8.0 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-1679 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-1679 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-20132 ( SUSE ): 4.9 CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L CVE-2022-20132 ( NVD ): 4.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVE-2022-20141 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-20141 ( NVD ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2022-29900 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2022-29900 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2022-29901 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2022-29901 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2022-33981 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2022-33981 ( NVD ): 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Affected Products:	SUSE Linux Enterprise High Performance Computing 12 SP3 SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server 12 SP3 BCL 12-SP3

An update that solves nine vulnerabilities and has four security fixes can now be installed.

Description:

The SUSE Linux Enterprise 12 SP3 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-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050).
• CVE-2017-16525: Fixed a use-after-free after failed setup in usb/serial/console (bsc#1066618).

The following non-security bugs were fixed:

• 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 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 Linux Enterprise Server 12 SP3 BCL 12-SP3
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2022-2478=1

Package List:

• SUSE Linux Enterprise Server 12 SP3 BCL 12-SP3 (nosrc x86_64)
  • kernel-default-4.4.180-94.167.1
• SUSE Linux Enterprise Server 12 SP3 BCL 12-SP3 (x86_64)
  • kernel-default-base-debuginfo-4.4.180-94.167.1
  • kernel-syms-4.4.180-94.167.1
  • kernel-default-base-4.4.180-94.167.1
  • kernel-default-debuginfo-4.4.180-94.167.1
  • kernel-default-devel-4.4.180-94.167.1
  • kernel-default-debugsource-4.4.180-94.167.1
• SUSE Linux Enterprise Server 12 SP3 BCL 12-SP3 (noarch)
  • kernel-devel-4.4.180-94.167.1
  • kernel-macros-4.4.180-94.167.1
  • kernel-source-4.4.180-94.167.1

References:

• https://www.suse.com/security/cve/CVE-2017-16525.html
• https://www.suse.com/security/cve/CVE-2021-26341.html
• https://www.suse.com/security/cve/CVE-2021-4157.html
• https://www.suse.com/security/cve/CVE-2022-1679.html
• https://www.suse.com/security/cve/CVE-2022-20132.html
• https://www.suse.com/security/cve/CVE-2022-20141.html
• https://www.suse.com/security/cve/CVE-2022-29900.html
• https://www.suse.com/security/cve/CVE-2022-29901.html
• https://www.suse.com/security/cve/CVE-2022-33981.html
• https://bugzilla.suse.com/show_bug.cgi?id=1066618
• https://bugzilla.suse.com/show_bug.cgi?id=1146519
• https://bugzilla.suse.com/show_bug.cgi?id=1194013
• https://bugzilla.suse.com/show_bug.cgi?id=1196901
• https://bugzilla.suse.com/show_bug.cgi?id=1199487
• https://bugzilla.suse.com/show_bug.cgi?id=1199657
• https://bugzilla.suse.com/show_bug.cgi?id=1200571
• https://bugzilla.suse.com/show_bug.cgi?id=1200604
• https://bugzilla.suse.com/show_bug.cgi?id=1200605
• https://bugzilla.suse.com/show_bug.cgi?id=1200619
• https://bugzilla.suse.com/show_bug.cgi?id=1200692
• https://bugzilla.suse.com/show_bug.cgi?id=1201050
• https://bugzilla.suse.com/show_bug.cgi?id=1201080