VULNERABILITY INTELLIGENCE

CVE-2025-1125

CVSS score7.8 HIGH
EPSS probability0.45%
CISA KEVNot currently listed
Published2025-03-03
Last modified2026-10-21
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

When reading data from a hfs filesystem, grub's hfs filesystem module uses user-controlled parameters from the filesystem metadata to calculate the internal buffers size, however it misses to properly check for integer overflows. A maliciouly crafted filesystem may lead some of those buffer size calculation to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result the hfsplus_open_compressed_real() function will write past of the internal buffer length. This flaw may be leveraged to corrupt grub's internal critical data and may result in arbitrary code execution by-passing secure boot protections.

Weakness classification

  • secalert@redhat.com: CWE-787

Primary references