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SUSE Linux 12 SP5: 2021:2025-1 Important: Kernel Live Patch 7 Issues

suse
Calendar Grey June 18, 2021
Scroller Suse
Important patch released for SUSE Linux Kernel addressing critical flaws, enhancing overall stability and efficiency of systems.
An update that solves two vulnerabilities and has one errata is now available

Summary

This update for the Linux Kernel 4.12.14-122_29 fixes several issues. The following issues were fixed: - CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values (bsc#1186111). - CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611). - Fixed a data loss/data corruption that occurs if there is a write error on an md/raid array (bsc#1185680). 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:

Topics%20covered

Topics Covered

security advisory kernel patch race condition system integrity data loss SUSE Linux use-after-free

References

#1185847 #1185899 #1186285

Cross- CVE-2021-32399 CVE-2021-33034

CVSS scores:

CVE-2021-32399 (NVD) : 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-32399 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2021-33034 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-33034 (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 Module for Live Patching 15-SP2

SUSE Linux Enterprise Module for Live Patching 15-SP1

SUSE Linux Enterprise Live Patching 12-SP5

SUSE Linux Enterprise Live Patching 12-SP4

https://www.suse.com/security/cve/CVE-2021-32399.html

https://www.suse.com/security/cve/CVE-2021-33034.html

https://bugzilla.suse.com/1185847

https://bugzilla.suse.com/1185899

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:2025-1
Rating: important

Topics%20covered

Topics Covered

security advisory kernel patch race condition system integrity data loss SUSE Linux use-after-free

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