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SUSE: 2021:2453-1 Important Live Patch Escalation Fix for Kernel

suse
Calendar Grey July 22, 2021
Dist Suse Esm H88
SUSE's Kernel Security Patch addresses critical vulnerabilities in Live Patch 12 for SLE 12 SP5, enhancing system protection and stability
An update that fixes two vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-122_51 fixes several issues. The following security issues were fixed: - CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1187597) - CVE-2021-23133: Fixed a race condition in the SCTP sockets that can lead to kernel privilege escalation from the context of a network service or an unprivileged process. (bsc#1185901) 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 Live Patching 12-SP5:

Topics%20covered

Topics Covered

security advisory important kernel escalation live patch briefing

References

#1185901 #1187597

Cross- CVE-2021-0512 CVE-2021-23133

CVSS scores:

CVE-2021-0512 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2021-23133 (NVD) : 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-23133 (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 Live Patching 12-SP5

https://www.suse.com/security/cve/CVE-2021-0512.html

https://www.suse.com/security/cve/CVE-2021-23133.html

https://bugzilla.suse.com/1185901

https://bugzilla.suse.com/1187597

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:2453-1
Rating: important

Topics%20covered

Topics Covered

security advisory important kernel escalation live patch briefing

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