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SUSE: 2022:4038-1 Important Linux Kernel Update - Memory Corruption

suse
Calendar Grey November 16, 2022
Dist Suse Esm H88
SUSE Releases Security Patch For Linux Kernel, Addressing Memory Corruption And Elevated Privilege Vulnerabilities.
An update that fixes two vulnerabilities is now available

Summary

This update for the Linux Kernel 5.3.18-150200_24_134 fixes several issues. The following security issues were fixed: - 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) - CVE-2022-39189: Fixed a bug in the x86 KVM subsystem which allows unprivileged guest users to compromise the guest kernel because TLB flush operations are mishandled (bnc#1203066). 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 privilege escalation memory corruption important kernel SUSE live patching

References

#1196959 #1203067

Cross- CVE-2021-39698 CVE-2022-39189

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-2022-39189 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-39189 (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 High Performance Computing 15-SP2

SUSE Linux Enterprise High Performance Computing 15-SP3

SUSE Linux Enterprise Micro 5.1

SUSE Linux Enterprise Module for Live Patching 15-SP2

SUSE Linux Enterprise Module for Live Patching 15-SP3

SUSE Linux Enterprise Server 15-SP2

SUSE Linux Enterprise Server 15-SP3

SUSE Linux Enterprise Server for SAP Applications 15-SP2

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:4038-1
Rating: important

Topics%20covered

Topics Covered

security advisory privilege escalation memory corruption important kernel SUSE live patching

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