Integer Overflow or Wraparound Affecting kernel-livepatch-4_12_14-150_72-default package, versions <1-1.3.1


Severity

Recommended
medium

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.3% (23rd percentile)

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  • Snyk IDSNYK-SLES150-KERNELLIVEPATCH4121415072DEFAULT-2689897
  • published14 Apr 2022
  • disclosed12 May 2021

Introduced: 12 May 2021

CVE-2021-3428  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 kernel-livepatch-4_12_14-150_72-default to version 1-1.3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-4_12_14-150_72-default package and not the kernel-livepatch-4_12_14-150_72-default package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

A flaw was found in the Linux kernel. A denial of service problem is identified if an extent tree is corrupted in a crafted ext4 filesystem in fs/ext4/extents.c in ext4_es_cache_extent. Fabricating an integer overflow, A local attacker with a special user privilege may cause a system crash problem which can lead to an availability threat.

CVSS Base Scores

version 3.1