{"id":"DEBIAN-CVE-2023-40550","details":"An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.","modified":"2026-08-07T07:03:30.162849282Z","published":"2024-01-29T17:15:08.773Z","upstream":["CVE-2023-40550"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-40550"}],"affected":[{"package":{"name":"shim","ecosystem":"Debian:11","purl":"pkg:deb/debian/shim?arch=source&distro=bullseye"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"15.8-1~deb11u1"}]}],"versions":["15.4-7","15.6-1","15.6-1~deb10u1","15.6-1~deb11u1","15.7-1","15.7-1~deb10u1","15.7-1~deb11u1","15.8-1~deb10u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-40550.json"}},{"package":{"name":"shim","ecosystem":"Debian:12","purl":"pkg:deb/debian/shim?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"15.8-1~deb12u1"}]}],"versions":["15.7-1","15.8-1~deb10u1","15.8-1~deb11u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-40550.json"}},{"package":{"name":"shim","ecosystem":"Debian:13","purl":"pkg:deb/debian/shim?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"15.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-40550.json"}},{"package":{"name":"shim","ecosystem":"Debian:14","purl":"pkg:deb/debian/shim?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"15.8-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-40550.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}