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SUSE: 2021:3743-1 Critical Update: Resolution for Live Patch 7 Overflow

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Calendar Grey November 19, 2021
Scroller Suse
Crucial SUSE Security Update for the Linux Kernel addressing severe integer overflow weaknesses with essential patch implementations.
An update that fixes one vulnerability is now available

Summary

This update for the Linux Kernel 5.3.18-59_27 fixes one issue. The following security issue was fixed: - CVE-2021-41864: Fixed an integer overflow with a resultant out-of-bounds write in prealloc_elems_and_freelist in kernel/bpf/stackmap.c (bsc#1191318). 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-SP3: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2021-3743=1 - SUSE Linux Enterprise Module for Live Patching 15-SP2: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2021-3744=1 Package List:

References

#1191318

Cross- CVE-2021-41864

CVSS scores:

CVE-2021-41864 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

SUSE Linux Enterprise Module for Live Patching 15-SP3

SUSE Linux Enterprise Module for Live Patching 15-SP2

https://www.suse.com/security/cve/CVE-2021-41864.html

https://bugzilla.suse.com/1191318

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:3743-1
Rating: important

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