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SUSE 15 SP1: 2022:2461-1 Important: Kernel Live Patch for Local Escalation

suse
Calendar Grey July 21, 2022
Dist Suse Esm H88
SUSE bolsters system resilience through a pivotal live patch addressing three critical vulnerabilities, enhancing both safety and reliability.
An update that fixes three vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-150100_197_111 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 Module for Live Patching 15-SP2:

Topics%20covered

Topics Covered

security advisory kernel update important race condition local escalation SUSE Linux Enterprise Live Patch

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 High Performance Computing 15

SUSE Linux Enterprise High Performance Computing 15-SP1

SUSE Linux Enterprise High Performance Computing 15-SP2

SUSE Linux Enterprise Module for Live Patching 15

SUSE Linux Enterprise Module for Live Patching 15-SP1

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:2461-1
Rating: important

Topics%20covered

Topics Covered

security advisory kernel update important race condition local escalation SUSE Linux Enterprise Live Patch

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