Riskcovery

CVE-2024-45779

Grub2: fs/bfs: integer overflow leads to heap oob read in the bfs parser

State
Published
Severity
6.0 Medium
Published
Mar 3, 2025
Updated
Oct 21, 2026
Reserved
Sep 8, 2024

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.16.0 MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:Hredhat

Weaknesses

  • CWE-190 Integer Overflow or Wraparound

Affected Products

ProductVersions
grub2
  • 2.12 and earlierAffected
Red Hat Enterprise Linux 10Red Hat
    Red Hat Enterprise Linux 7Red Hat
      Red Hat Enterprise Linux 8Red Hat
        Red Hat Enterprise Linux 9Red Hat
          Red Hat OpenShift Container Platform 4Red Hat

            References

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