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SUSE: 2021:1395-1 Important Update for Linux Kernel Live Patching

suse
Calendar Grey April 28, 2021
Scroller Suse
SUSE publishes a crucial security patch for the Linux Kernel, rectifying several flaws in SLE 15 SP1.
An update that fixes three vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-197_86 fixes several issues. The following security issues were fixed: - CVE-2021-3444: Fixed an issue with the bpf verifier which did not properly handle mod32 destination register truncation when the source register was known to be 0 leading to out of bounds read (bsc#1184171). - CVE-2021-28660: Fixed an out of bounds write in rtw_wx_set_scan (bsc#1183658). - CVE-2021-28688: Fixed an issue introduced by XSA-365 (bsc##1182294, bsc#1183646). 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 update critical important kernel SUSE live patch

References

#1182294 #1183658 #1184171

Cross- CVE-2021-28660 CVE-2021-28688 CVE-2021-3444

CVSS scores:

CVE-2021-28660 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-28660 (SUSE): 8 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVE-2021-28688 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVE-2021-3444 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-3444 (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 Module for Live Patching 15-SP2

SUSE Linux Enterprise Module for Live Patching 15-SP1

https://www.suse.com/security/cve/CVE-2021-28660.html

https://www.suse.com/security/cve/CVE-2021-28688.html

https://www.suse.com/security/cve/CVE-2021-3444.html

Severity
important
Lowest
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Critical

Announcement ID: SUSE-SU-2021:1395-1
Rating: important

Topics%20covered

Topics Covered

security advisory update critical important kernel SUSE live patch

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