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SUSE: 2021:2746-1 Important: Linux Kernel Live Patch 10 for SLE 12 SP5

suse
Calendar Grey August 17, 2021
Dist Suse Esm H88
An essential upgrade from SUSE tackles various kernel weaknesses and boosts security for Live Patch 10 within SLE 12 SP5.
An update that fixes three vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-122_41 fixes several issues. The following security issues were fixed: - CVE-2021-22543: Fixed an issue with KVM, related to the handling of VM_IO|VM_PFNMAP vmas, which allowed users with the ability to start and control a VM to read/write random pages of memory and could result in local privilege escalation (bsc#1186482). - CVE-2021-37576: On the powerpc platform KVM guest OS users could cause host OS memory corruption via rtas_args.nargs (bsc#1188838). - CVE-2021-3609: Fixed a local privilege escalation via a race condition in net/can/bcm.c (bsc#1187215). 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 important kernel SUSE local escalation updates live patch

References

#1186483 #1188323 #1188842

Cross- CVE-2021-22543 CVE-2021-3609 CVE-2021-37576

CVSS scores:

CVE-2021-22543 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2021-3609 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-37576 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:

SUSE Linux Enterprise Module for Live Patching 15-SP3

SUSE Linux Enterprise Module for Live Patching 15-SP2

SUSE Linux Enterprise Module for Live Patching 15-SP1

SUSE Linux Enterprise Module for Live Patching 15

SUSE Linux Enterprise Live Patching 12-SP5

SUSE Linux Enterprise Live Patching 12-SP4

https://www.suse.com/security/cve/CVE-2021-22543.html

https://www.suse.com/security/cve/CVE-2021-3609.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:2746-1
Rating: important

Topics%20covered

Topics Covered

security advisory important kernel SUSE local escalation updates live patch

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