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SUSE: 2022:1034-1 Important: Linux Kernel Live Patch Privilege Escalation

suse
Calendar Grey March 30, 2022
Dist Suse Esm H88
SUSE announces a critical update addressing two significant kernel vulnerabilities, enhancing privilege control and reinforcing security protocols.
An update that fixes two vulnerabilities is now available

Summary

This update for the Linux Kernel 5.3.18-150300_59_54 fixes several issues. The following security issues were fixed: - CVE-2022-25636: Fixed an issue which allowed a local users to gain privileges because of a heap out-of-bounds write in nf_dup_netdev.c, related to nf_tables_offload (bsc#1196299). - CVE-2021-0920: Fixed a local privilege escalation due to a use-after-free vulnerability in unix_scm_to_skb of af_unix (bsc#1193731). 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-SP3-2022-1034=1 Package List:

Topics%20covered

Topics Covered

security advisory important heap overflow SUSE privilege management Linux Kernel live patch

References

#1194463 #1196301

Cross- CVE-2021-0920 CVE-2022-25636

CVSS scores:

CVE-2021-0920 (NVD) : 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CVE-2021-0920 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-25636 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-25636 (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 High Performance Computing 15-SP3

SUSE Linux Enterprise Micro 5.1

SUSE Linux Enterprise Module for Live Patching 15-SP3

SUSE Linux Enterprise Server 15-SP3

SUSE Linux Enterprise Server for SAP Applications 15-SP3

https://www.suse.com/security/cve/CVE-2021-0920.html

https://www.suse.com/security/cve/CVE-2022-25636.html

https://bugzilla.suse.com/1194463

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:1034-1
Rating: important

Topics%20covered

Topics Covered

security advisory important heap overflow SUSE privilege management Linux Kernel live patch

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