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SUSE: 2021:0869-1 Important: Kernel Live Patch Critical Issues Fix

suse
Calendar Grey March 17, 2021
Dist Suse Esm H88
SUSE Kernel's latest security patch resolves major vulnerabilities, reinforcing system integrity and enhancing stability for Live Patch 10 deployments.
An update that fixes two vulnerabilities is now available

Summary

This update for the Linux Kernel 5.3.18-24_49 fixes several issues. The following security issues were fixed: - CVE-2020-29368: Fixed an issue in copy-on-write implementation which could have granted unintended write access because of a race condition in a THP mapcount check (bsc#1179664). - CVE-2020-29373: Fixed an issue where kernel unsafely handles the root directory during path lookups, and thus a process inside a mount namespace could escape to unintended filesystem locations (bsc#1179779). 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:

References

#1179664 #1179779

Cross- CVE-2020-29368 CVE-2020-29373

CVSS scores:

CVE-2020-29368 (NVD) : 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2020-29368 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2020-29373 (SUSE): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Products:

SUSE Linux Enterprise Module for Live Patching 15-SP2

https://www.suse.com/security/cve/CVE-2020-29368.html

https://www.suse.com/security/cve/CVE-2020-29373.html

https://bugzilla.suse.com/1179664

https://bugzilla.suse.com/1179779

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:0869-1
Rating: important

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