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SUSE: 2022:3377-1 Critical: Kernel Live Patch for Privilege Escalation

suse
Calendar Grey September 25, 2022
Dist Suse Esm H88
SUSE released a vital security advisory for Kernel (Live Patch 22) addressing major vulnerabilities. Admins should urgently apply patches for enhanced security and stability
An update that fixes two vulnerabilities is now available

Summary

This update for the Linux Kernel 5.3.18-150300_59_87 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-SP3: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP3-2022-3377=1 - SUSE Linux Enterprise Live Patching 12-SP5:

Topics%20covered

Topics Covered

security advisory critical privilege escalation patch race condition kernel SUSE Linux Enterprise

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-SP3

SUSE Linux Enterprise Live Patching 12-SP5

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-2022-29581.html

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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:3377-1
Rating: important

Topics%20covered

Topics Covered

security advisory critical privilege escalation patch race condition kernel SUSE Linux Enterprise

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