Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Grub2 | <= 2.12 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/security/cve/CVE-2024-45779Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2345854Issue Tracking
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.htmlMailing List
FAQ
What is CVE-2024-45779?
CVE-2024-45779 is a vulnerability with a CVSS score of 6.0 (MEDIUM). 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 o...
How severe is CVE-2024-45779?
CVE-2024-45779 has been rated MEDIUM with a CVSS base score of 6.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-45779?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Grub2.