VULNERABILITY INTELLIGENCE

CVE-2018-1095

CVSS score5.5 MEDIUM
EPSS probability1.43%
CISA KEVNot currently listed
Published2018-04-02
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Description

The ext4_xattr_check_entries function in fs/ext4/xattr.c in the Linux kernel through 4.15.15 does not properly validate xattr sizes, which causes misinterpretation of a size as an error code, and consequently allows attackers to cause a denial of service (get_acl NULL pointer dereference and system crash) via a crafted ext4 image.

Weakness classification

  • CWE-476: NULL Pointer Dereference

Primary references