Description
A use-after-free vulnerability has been identified in the GNU GRUB (Grand Unified Bootloader). The flaw occurs because the file-closing process incorrectly retains a memory pointer, leaving an invalid reference to a file system structure. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.
Problem types
Product status
Timeline
| 2025-11-10: | Reported to Red Hat. |
| 2025-11-18: | Made public. |
References
www.openwall.com/lists/oss-security/2025/11/18/3
access.redhat.com/security/cve/CVE-2025-54771
bugzilla.redhat.com/show_bug.cgi?id=2413823 (RHBZ#2413823)