VULNERABILITY INTELLIGENCE

CVE-2021-3428

CVSS score5.5 MEDIUM
EPSS probability0.30%
CISA KEVNot currently listed
Published2022-03-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • CWE-190: Integer Overflow or Wraparound

Primary references