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SUSE: 2021:2377-1 Important: Kernel Live Patch Privilege Escalation Threat

suse
Calendar Grey July 16, 2021
Dist Suse Esm H88
SUSE has released a Security Update addressing multiple vulnerabilities in the Linux Kernel (Live Patch 1 for SLE 15 SP2), including detailed installation procedures.
An update that fixes three vulnerabilities is now available

Summary

This update for the Linux Kernel 5.3.18-24_9 fixes several issues. The following security issues were fixed: - CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. (bsc#1187687) - CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1187597) - CVE-2021-23133: Fixed a race condition in the SCTP sockets that can lead to kernel privilege escalation from the context of a network service or an unprivileged process. (bsc#1185901) Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Topics%20covered

Topics Covered

security advisory privilege escalation kernel patch system bug fix suse linux enterprise local information disclosure

References

#1185901 #1187597 #1187687

Cross- CVE-2021-0512 CVE-2021-0605 CVE-2021-23133

CVSS scores:

CVE-2021-0512 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2021-0605 (NVD) : 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVE-2021-0605 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2021-23133 (NVD) : 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-23133 (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

https://www.suse.com/security/cve/CVE-2021-0512.html

https://www.suse.com/security/cve/CVE-2021-0605.html

https://www.suse.com/security/cve/CVE-2021-23133.html

https://bugzilla.suse.com/1185901

https://bugzilla.suse.com/1187597

Severity
important
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2021:2377-1
Rating: important

Topics%20covered

Topics Covered

security advisory privilege escalation kernel patch system bug fix suse linux enterprise local information disclosure

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