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SUSE: 2021:3361-1 Important: Critical Kernel Escalation Fix

suse
Calendar Grey October 12, 2021
Scroller Suse
SUSE has released an important security update addressing critical kernel vulnerabilities that may cause unauthorized access. Prompt updates are crucial for protection
An update that fixes two vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-122_83 fixes several issues. The following security issues were fixed: - CVE-2021-3640: Fixed a user-after-free bug in the function sco_sock_sendmsg which could lead to local privilege escalation. (bsc#1188613) - CVE-2021-3573: Fixed a user-after-free bug in the function hci_sock_bound_ioctl which could lead to local privilege escalation. (bsc#1187054). 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-SP3-2021-3355=1 - SUSE Linux Enterprise Module for Live Patching 15-SP2:

Topics%20covered

Topics Covered

security advisory security update kernel patch vulnerability important SUSE local escalation

References

#1187054 #1188613

Cross- CVE-2021-3573 CVE-2021-3640

CVSS scores:

CVE-2021-3573 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2021-3640 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/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 Live Patching 12-SP5

https://www.suse.com/security/cve/CVE-2021-3573.html

https://www.suse.com/security/cve/CVE-2021-3640.html

https://bugzilla.suse.com/1187054

https://bugzilla.suse.com/1188613

Severity
important
Lowest
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Medium
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Critical

Announcement ID: SUSE-SU-2021:3361-1
Rating: important

Topics%20covered

Topics Covered

security advisory security update kernel patch vulnerability important SUSE local escalation

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