CVE-2024-45779 Information

Description

An integer overflow flaw was found in the BFS file system driver in grub2. When reading a file with an indirect extent map grub2 fails to validate the number of extent entries to be read. A crafted or corrupted BFS filesystem may cause an integer overflow during the file reading leading to a heap of bounds read. As a consequence sensitive data may be leaked or grub2 will crash.

CVSS Vector

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

Reference

https://access.redhat.com/security/cve/CVE-2024-45779 https://bugzilla.redhat.com/show_bug.cgi?id=2345854

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

4.1