VULNERABILITY INTELLIGENCE

CVE-2020-14309

CVSS score6.7 MEDIUM
EPSS probability0.48%
CISA KEVNot currently listed
Published2020-07-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Description

There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.

Weakness classification

  • nvd@nist.gov: CWE-190

Primary references