CVE-2025-0678

CVE-2025-0678

Título es
CVE-2025-0678

Lun, 03/03/2025 – 17:15

Tipo
CWE-787

Gravedad 2.0 Txt
Pendiente de análisis

Título en

CVE-2025-0678

Descripción en
A flaw was found in grub2. When reading data from a squash4 filesystem, grub's squash4 fs module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciously crafted filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the direct_read() will perform a heap based out-of-bounds write during data reading. This flaw may be leveraged to corrupt grub's internal critical data and may result in arbitrary code execution, by-passing secure boot protections.

03/03/2025

03/03/2025

Vector CVSS:3.1
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Gravedad 3.1 (CVSS 3.1 Base Score)
6.40

Gravedad 3.1 Txt Gravedad 3.1 (CVSS 3.1 Base Score)
MEDIUM

Referencias

Enviar en el boletín
Off