VULNERABILITY INTELLIGENCE

CVE-2020-14311

CVSS score5.7 MEDIUM
EPSS probability0.46%
CISA KEVNot currently listed
Published2020-07-31
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H

Description

There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.

Weakness classification

  • secalert@redhat.com: CWE-122
  • nvd@nist.gov: CWE-190

Primary references