{"id":"DEBIAN-CVE-2025-54771","details":"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.","modified":"2026-09-02T08:47:36.275651248Z","published":"2025-11-18T19:15:49.420Z","upstream":["CVE-2025-54771"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-54771"}],"affected":[{"package":{"name":"grub2","ecosystem":"Debian:12","purl":"pkg:deb/debian/grub2?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.06-13","2.06-13+deb12u1","2.06-13+deb12u2","2.06-13+hurd.1","2.06-13+hurd.2","2.06-14","2.12-1","2.12-1.1","2.12-1~bpo12+1","2.12-2","2.12-2~deb13u1","2.12-3","2.12-4","2.12-5","2.12-5+hurd.1","2.12-6","2.12-7","2.12-8","2.12-9","2.12-9+hurd.1","2.12~rc1-1","2.12~rc1-10","2.12~rc1-11","2.12~rc1-12","2.12~rc1-13","2.12~rc1-2","2.12~rc1-3","2.12~rc1-6","2.12~rc1-7","2.12~rc1-8","2.12~rc1-9","2.14-1","2.14-2","2.14-3","2.14~git20250718.0e36779-1","2.14~git20250718.0e36779-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54771.json"}},{"package":{"name":"grub2","ecosystem":"Debian:13","purl":"pkg:deb/debian/grub2?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.12-9","2.12-9+deb13u1","2.12-9+deb13u2","2.12-9+hurd.1","2.14-1","2.14-2","2.14-3","2.14~git20250718.0e36779-1","2.14~git20250718.0e36779-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54771.json"}},{"package":{"name":"grub2","ecosystem":"Debian:14","purl":"pkg:deb/debian/grub2?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.14-1"}]}],"versions":["2.12-9","2.12-9+hurd.1","2.14~git20250718.0e36779-1","2.14~git20250718.0e36779-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-54771.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"}]}