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SUSE: 2020:3190-1 Important: Kernel Patch For Memory Attack Risks

suse
Calendar Grey November 5, 2020
Dist Suse Esm H88
A significant SUSE Security Update targets crucial vulnerabilities in the Linux Kernel, featuring a vital live patch for SLE 15 SP1.
An update that fixes four vulnerabilities is now available

Summary

This update for the Linux Kernel 4.12.14-197_48 fixes several issues. The following security issues were fixed: - CVE-2020-14381: Fixed a use-after-free in the fast user mutex (futex) wait operation, which could have lead to memory corruption and possibly privilege escalation (bsc#1176011). - CVE-2020-25212: A TOCTOU mismatch in the NFS client code could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c (bsc#1176381). - CVE-2020-14386: Fixed a memory corruption which could have lead to an attacker gaining root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity (bsc#1176069).

References

#1175992 #1176012 #1176072 #1176382

Cross- CVE-2020-14381 CVE-2020-14386 CVE-2020-24394

CVE-2020-25212

Affected Products:

SUSE Linux Enterprise Module for Live Patching 15-SP1

https://www.suse.com/security/cve/CVE-2020-14381.html

https://www.suse.com/security/cve/CVE-2020-14386.html

https://www.suse.com/security/cve/CVE-2020-24394.html

https://www.suse.com/security/cve/CVE-2020-25212.html

https://bugzilla.suse.com/1175992

https://bugzilla.suse.com/1176012

https://bugzilla.suse.com/1176072

https://bugzilla.suse.com/1176382

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2020:3190-1
Rating: important

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