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SUSE 15 Live Kernel Patch 2482-1 Important: Privilege Escalation Fix

suse
Calendar Grey July 21, 2022
Dist Suse Esm H88
SUSE's latest patch introduces vital enhancements for the Linux Kernel, significantly bolstering system security and reliability.
An update that fixes three vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-150000_150_89 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-SP4:

Topics%20covered

Topics Covered

security advisory privilege escalation kernel patch threat mitigation SUSE important update live patching

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 High Performance Computing 15-SP3

SUSE Linux Enterprise High Performance Computing 15-SP4

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:2482-1
Rating: important

Topics%20covered

Topics Covered

security advisory privilege escalation kernel patch threat mitigation SUSE important update live patching

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