Vulnerabilities > CVE-2024-45779 - Unspecified vulnerability in GNU Grub2

047910
CVSS 6.0 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
HIGH
Confidentiality impact
HIGH
Integrity impact
NONE
Availability impact
HIGH
local
low complexity
gnu

Summary

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.