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SUSE 15 SP1 Security Advisory: 2021:1365-1 Important Kernel Update

suse
Calendar Grey April 28, 2021
Scroller Suse
SUSE Security Patch addresses 7 kernel vulnerabilities in Live Patch 18 for SLE 15 SP2, enhancing robustness and safety.
An update that fixes 5 vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-197_64 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). - CVE-2021-26930: Fixed an improper error handling in blkback's grant mapping (XSA-365 bsc#1182294). - CVE-2021-26931: Fixed an issue where Linux kernel was treating grant mapping errors as bugs (XSA-362 bsc#1183022). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods

Topics%20covered

Topics Covered

security advisory security issue important kernel fix SUSE Linux kernel Live patch

References

#1182294 #1183658 #1184171

Cross- CVE-2021-26930 CVE-2021-26931 CVE-2021-28660

CVE-2021-28688 CVE-2021-3444

CVSS scores:

CVE-2021-26930 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-26930 (SUSE): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CVE-2021-26931 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE-2021-26931 (SUSE): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

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

Severity
important
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2021:1365-1
Rating: important

Topics%20covered

Topics Covered

security advisory security issue important kernel fix SUSE Linux kernel Live patch

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