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SUSE 15 SP2: 2022:3464-2 Critical: Live Patching Kernel Fix

suse
Calendar Grey September 29, 2022
Dist Suse Esm H88
Canonical issues Security Patch to resolve critical kernel vulnerabilities in Live Patch 18 for Ubuntu 20.04 LTS, providing setup instructions and remediation measures.
An update that fixes two vulnerabilities is now available

Summary

This update for the Linux Kernel 5.3.18-150200_24_115 fixes several issues. The following security issues were fixed: - CVE-2022-39188: Fixed a race condition between unmap_mapping_range() and munmap() on VM_PFNMAP mappings leads to stale TLB entry (bsc#1203116). - CVE-2022-29581: Fixed an improper Update of Reference Count vulnerability in net/sched that causes privilege escalation to root (bsc#1199695). 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-SP2: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP2-2022-3463=1 Package List:

Topics%20covered

Topics Covered

security advisory critical privilege escalation race condition kernel fix SUSE live patching

References

#1199695 #1203116

Cross- CVE-2022-29581 CVE-2022-39188

CVSS scores:

CVE-2022-29581 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-29581 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-39188 (NVD) : 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE-2022-39188 (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 Module for Live Patching 15-SP2

SUSE Linux Enterprise Server 15-SP2

SUSE Linux Enterprise Server for SAP Applications 15-SP2

https://www.suse.com/security/cve/CVE-2022-29581.html

https://www.suse.com/security/cve/CVE-2022-39188.html

https://bugzilla.suse.com/1199695

https://bugzilla.suse.com/1203116

Severity
critical
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:3463-1
Rating: important

Topics%20covered

Topics Covered

security advisory critical privilege escalation race condition kernel fix SUSE live patching

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