{"id":"DEBIAN-CVE-2024-56738","details":"GNU GRUB (aka GRUB2) through 2.12 does not use a constant-time algorithm for grub_crypto_memcmp and thus allows side-channel attacks.","modified":"2026-09-15T09:03:17.499799259Z","published":"2024-12-29T07:15:06.183Z","upstream":["CVE-2024-56738"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-56738"}],"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-2024-56738.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-2024-56738.json"}},{"package":{"name":"grub2","ecosystem":"Debian:14","purl":"pkg:deb/debian/grub2?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.12-9","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-2024-56738.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}