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SUSE: 2021:1724-1 Critical: Kernel Patch Fixes System Crashes

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Calendar Grey May 25, 2021
Scroller Suse
The latest kernel patch from SUSE tackles a pair of vital vulnerabilities and boosts overall system performance. Discover further details and initiate your update today.
An update that solves two vulnerabilities and has one errata is now available

Summary

This update for the Linux Kernel 4.12.14-197_51 fixes several issues. The following security issues were fixed: - CVE-2020-36322: Fixed an issue inside the FUSE filesystem implementation where fuse_do_getattr() calls make_bad_inode() in inappropriate situations, could have caused a system crash. NOTE: the original fix for this vulnerability was incomplete, and its incompleteness is tracked as CVE-2021-28950 (bsc#1184952). - CVE-2021-29154: Fixed BPF JIT compilers that allowed to execute arbitrary code within the kernel context (bsc#1184710) - Fix system crash on kernfs_kill_sb() as a sysfs superblock's kernfs_super_info node list was NULL (bsc#1183452). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Topics%20covered

Topics Covered

security advisory critical arbitrary code execution kernel patch SUSE system crash live patching

References

#1183452 #1184710 #1184952

Cross- CVE-2020-36322 CVE-2021-29154

CVSS scores:

CVE-2020-36322 (SUSE): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CVE-2021-29154 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-29154 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

SUSE Linux Enterprise Module for Live Patching 15-SP1

SUSE Linux Enterprise Live Patching 12-SP5

https://www.suse.com/security/cve/CVE-2020-36322.html

https://www.suse.com/security/cve/CVE-2021-29154.html

https://bugzilla.suse.com/1183452

https://bugzilla.suse.com/1184710

https://bugzilla.suse.com/1184952

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:1724-1
Rating: important

Topics%20covered

Topics Covered

security advisory critical arbitrary code execution kernel patch SUSE system crash live patching

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