CVE-2024-45779

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.

Score

CVSS 3.1 6.0 Medium

Status

Modified - secalert@redhat.com

Published

2025-03-03

Last modified

2026-10-21

Weaknesses

CWE-190

Affected products

• Grub2 (Gnu)
• Enterprise Linux (Redhat)
• Openshift (Redhat)

References

• https://access.redhat.com/security/cve/CVE-2024-45779
• https://bugzilla.redhat.com/show_bug.cgi?id=2345854
• https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html