VULNERABILITY INTELLIGENCE

CVE-2018-1093

CVSS score5.5 MEDIUM
EPSS probability1.92%
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_valid_block_bitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers.

Weakness classification

  • CWE-125: Out-of-bounds Read

Primary references