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SUSE: 2021:2067-1 Important: Kernel Live Patch 17 Fixes Security Issues

suse
Calendar Grey June 18, 2021
Scroller Suse
Update resolves several security flaws in the Linux Kernel for openSUSE, enhancing overall protection and reliability.
An update that solves three vulnerabilities and has one errata is now available

Summary

This update for the Linux Kernel 4.12.14-122_66 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-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges (bnc#1186060). - 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:

Topics%20covered

Topics Covered

security advisory privilege escalation important kernel data integrity SUSE live patch

References

#1185847 #1185899 #1186061 #1186285

Cross- CVE-2021-23134 CVE-2021-32399 CVE-2021-33034

CVSS scores:

CVE-2021-23134 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-23134 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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 Live Patching 12-SP5

https://www.suse.com/security/cve/CVE-2021-23134.html

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

Severity
important
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2021:2067-1
Rating: important

Topics%20covered

Topics Covered

security advisory privilege escalation important kernel data integrity SUSE live patch

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