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SUSE: 2022:4039-1 Important: Linux Kernel Security Fixes

suse
Calendar Grey November 16, 2022
Dist Suse Esm H88
An enhancement was made to the Linux Kernel Live Patch 2 for SUSE 15 SP4, addressing severe vulnerabilities and bolstering protective access controls.
An update that fixes four vulnerabilities is now available

Summary

This update for the Linux Kernel 5.14.21-150400_24_18 fixes several issues. The following security issues were fixed: - CVE-2022-1882: Fixed a use-after-free flaw in free_pipe_info() that could allow a local user to crash or potentially escalate their privileges on the system (bsc#1199904). - CVE-2022-2588: Fixed use-after-free in cls_route (bsc#1202096). - CVE-2022-42703: Fixed use-after-free in mm/rmap.c related to leaf anon_vma double reuse (bnc#1204168). - CVE-2022-42722: Fixed crash in beacon protection for P2P-device. (bsc#1204125) 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 critical access control kernel fix SUSE use-after-free live patch

References

#1200058 #1203613 #1204170 #1204289

Cross- CVE-2022-1882 CVE-2022-2588 CVE-2022-42703

CVE-2022-42722

CVSS scores:

CVE-2022-1882 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-1882 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2022-2588 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-42703 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE-2022-42703 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-42722 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE-2022-42722 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

SUSE Linux Enterprise High Performance Computing 15-SP4

SUSE Linux Enterprise Module for Live Patching 15-SP4

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:4039-1
Rating: important

Topics%20covered

Topics Covered

security advisory critical access control kernel fix SUSE use-after-free live patch

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