SUSE-SU-2022:2444-1: important: Security update for the Linux Kernel (Live Patch 23 for SLE 12 SP4)
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Wed Jul 20 01:15:16 UTC 2022
SUSE Security Update: Security update for the Linux Kernel (Live Patch 23 for SLE 12 SP4)
______________________________________________________________________________
Announcement ID: SUSE-SU-2022:2444-1
Rating: important
References: #1199697 #1200059 #1200608
Cross-References: 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
______________________________________________________________________________
An update that fixes three vulnerabilities is now available.
Description:
This update for the Linux Kernel 4.12.14-95_83 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-SP4:
zypper in -t patch SUSE-SLE-Live-Patching-12-SP4-2022-2444=1
Package List:
- SUSE Linux Enterprise Live Patching 12-SP4 (ppc64le s390x x86_64):
kgraft-patch-4_12_14-95_83-default-11-2.3
References:
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
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