Use After Free Affecting kernel-livepatch-4_12_14-25_3-default package, versions <5-2.1


Severity

Recommended
medium

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
3.21% (87th percentile)

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  • Snyk IDSNYK-SLES150-KERNELLIVEPATCH41214253DEFAULT-2757867
  • published14 Apr 2022
  • disclosed22 Oct 2018

Introduced: 22 Oct 2018

CVE-2018-17182  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 kernel-livepatch-4_12_14-25_3-default to version 5-2.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-4_12_14-25_3-default package and not the kernel-livepatch-4_12_14-25_3-default package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

An issue was discovered in the Linux kernel through 4.18.8. The vmacache_flush_all function in mm/vmacache.c mishandles sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations.

CVSS Base Scores

version 3.1