CVE-2024-45780 Information

Description

A flaw was found in grub2. When reading tar files grub2 allocates an internal buffer for the file name. However it fails to properly verify the allocation against possible integer overflows. It’s possible to cause the allocation length to overflow with a crafted tar file leading to a heap out-of-bounds write. This flaw eventually allows an attacker to circumvent secure boot protections.

CVSS Vector

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

Reference

https://access.redhat.com/security/cve/CVE-2024-45780 https://bugzilla.redhat.com/show_bug.cgi?id=2345856

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.7