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SUSE: 2021:2487-1 Critical: Kernel Live Patch for Privilege Escalation

suse
Calendar Grey July 27, 2021
Dist Suse Esm H88
Debian announces vital firmware patch for OS enhancing system integrity and enhancing access controls. Ensure your systems are protected!
An update that fixes two vulnerabilities is now available

Summary

This update for the Linux Kernel 5.3.18-24_70 fixes several issues. The following security issues were fixed: - CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to andobtain full root privileges. (bsc#1188062) - CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/x_tables.c that could allow local provilege escalation. (bsc#1188116) 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:

Topics%20covered

Topics Covered

security advisory update privilege escalation kernel patch important suse linux kernel

References

#1188117 #1188257

Cross- CVE-2021-22555 CVE-2021-33909

CVSS scores:

CVE-2021-22555 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-22555 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-33909 (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-2021-22555.html

https://www.suse.com/security/cve/CVE-2021-33909.html

https://bugzilla.suse.com/1188117

https://bugzilla.suse.com/1188257

Severity
important
Lowest
Low
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Critical

Announcement ID: SUSE-SU-2021:2487-1
Rating: important

Topics%20covered

Topics Covered

security advisory update privilege escalation kernel patch important suse linux kernel

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