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SUSE: 2022:1269-1 Important: Kernel Privilege Escalation Issue

suse
Calendar Grey April 20, 2022
Dist Suse Esm H88
SUSE Security Advisory: Essential updates addressing significant vulnerabilities within the Linux Kernel for SLE 15 SP3 and additional versions.
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-2022-27666: Fixed a buffer overflow vulnerability in IPsec ESP transformation code. This flaw allowed a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation. (bnc#1197462) - CVE-2021-39698: Fixed a possible memory corruption due to a use after free in aio_poll_complete_work. This could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1196956) 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:

Topics%20covered

Topics Covered

security advisory buffer overflow privilege escalation kernel patch important SUSE live patching

References

#1196959 #1197133

Cross- CVE-2021-39698 CVE-2022-27666

CVSS scores:

CVE-2021-39698 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-39698 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2022-27666 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-27666 (SUSE): 7.7 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/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-2021-39698.html

https://www.suse.com/security/cve/CVE-2022-27666.html

https://bugzilla.suse.com/1196959

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:1269-1
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow privilege escalation kernel patch important SUSE live patching

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