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SUSE: 2021:0359-1 Important: Kernel Live Patch 9 For Critical Issues

suse
Calendar Grey February 10, 2021
Dist Suse Esm H88
Tackling essential vulnerabilities in the Linux Kernel through SUSE Security Patch for Live Patch 9 on SLE 15 SP2 now accessible.
An update that fixes three vulnerabilities is now available

Summary

This update for the Linux Kernel 5.3.18-24_46 fixes several issues. The following security issues were fixed: - CVE-2020-29373: Fixed an issue where kernel unsafely handles the root directory during path lookups, and thus a process inside a mount namespace can escape to unintended filesystem locations (bsc#1179779). - CVE-2020-29569: Fixed a use after free due to a logic error (bsc#1180008). - CVE-2020-29368: Fixed an issue in copy-on-write implementation which could grant unintended write access because of a race condition in a THP mapcount check (bsc#1179664). 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:

Topics%20covered

Topics Covered

security advisory critical issue update system patch SUSE Linux Kernel live patch

References

#1179664 #1179779 #1180008

Cross- CVE-2020-29368 CVE-2020-29373 CVE-2020-29569

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

CVE-2020-29569 (NVD) : 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVE-2020-29569 (SUSE): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

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://www.suse.com/security/cve/CVE-2020-29569.html

https://bugzilla.suse.com/1179664

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:0359-1
Rating: important

Topics%20covered

Topics Covered

security advisory critical issue update system patch SUSE Linux Kernel live patch

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