SUSE: 2022:2438-1 important: the Linux Kernel (Live Patch 30 for SLE 12 SP5)
Summary
This update for the Linux Kernel 4.12.14-122_116 fixes several issues. The following security issues were fixed: - 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-2022-21499: Reinforced the kernel lockdown feature, until now it's been trivial to break out of it with kgdb or kdb (bsc#1199426). - CVE-2022-1729: Fixed a sys_perf_event_open() race condition against self (bsc#1199507). 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 Linux Enterprise Live Patching 12-SP5: zypper in -t patch SUSE-SLE-Live-Patching-12-SP5-2022-2437=1 SUSE-SLE-Live-Patching-12-SP5-2022-2438=1 SUSE-SLE-Live-Patching-12-SP5-2022-2442=1 - SUSE Linux Enterprise Live Patching 12-SP4: zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2022-2433=1 Package List: - SUSE Linux Enterprise Live Patching 12-SP5 (ppc64le s390x x86_64): kgraft-patch-4_12_14-122_116-default-5-2.3 kgraft-patch-4_12_14-122_91-default-14-2.3 kgraft-patch-4_12_14-122_98-default-12-2.3 - SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64): kgraft-patch-4_12_14-95_93-default-6-2.3
References
#1199697 #1200059 #1200608
Cross- CVE-2022-1729 CVE-2022-20154 CVE-2022-21499
CVSS scores:
CVE-2022-1729 (SUSE): 8.2 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CVE-2022-20154 (NVD) : 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2022-20154 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2022-21499 (NVD) : 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVE-2022-21499 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
SUSE Linux Enterprise Live Patching 12-SP4
SUSE Linux Enterprise Live Patching 12-SP5
https://www.suse.com/security/cve/CVE-2022-1729.html
https://www.suse.com/security/cve/CVE-2022-20154.html
https://www.suse.com/security/cve/CVE-2022-21499.html
https://bugzilla.suse.com/1199697
https://bugzilla.suse.com/1200059
https://bugzilla.suse.com/1200608