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SUSE: 2022:0245-1 Important: Kernel Live Patch Fixes Escalation Risk

suse
Calendar Grey January 31, 2022
Dist Suse Esm H88
SUSE has issued a Security Update notice, focusing on kernel-related enhancements that effectively resolve critical vulnerabilities highlighted in Live Patch 26.
An update that fixes two vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-150_78 fixes several issues. The following security issues were fixed: - CVE-2018-25020: Fixed an issue in the BPF subsystem in the Linux kernel mishandled situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. (bsc#1193575) - CVE-2021-0935: Fixed out of bounds write due to a use after free which could lead to local escalation of privilege with System execution privileges needed in ip6_xmit. (bsc#1192032) 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:

References

#1192042 #1193863

Cross- CVE-2018-25020 CVE-2021-0935

CVSS scores:

CVE-2018-25020 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-0935 (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

SUSE Linux Enterprise Live Patching 12-SP4

https://www.suse.com/security/cve/CVE-2018-25020.html

https://www.suse.com/security/cve/CVE-2021-0935.html

https://bugzilla.suse.com/1192042

https://bugzilla.suse.com/1193863

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:0245-1
Rating: important

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