{"id":"DEBIAN-CVE-2026-103679","details":"A flaw was found in tnef. A remote attacker could exploit this vulnerability by providing a specially crafted Transport Neutral Encapsulation Format (TNEF) file containing multiple message bodies. During extraction, improper memory management triggers a use-after-free and double-free condition, causing the application to crash and resulting in a Denial of Service (DoS).","modified":"2026-10-02T17:00:07.097785161Z","published":"2026-10-01T12:17:15.683Z","upstream":["CVE-2026-103679"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-103679"}],"affected":[{"package":{"name":"tnef","ecosystem":"Debian:12","purl":"pkg:deb/debian/tnef?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.18-3","1.4.18-4","1.4.18-5","1.4.18-6"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103679.json"}},{"package":{"name":"tnef","ecosystem":"Debian:13","purl":"pkg:deb/debian/tnef?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.18-4","1.4.18-5","1.4.18-6"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103679.json"}},{"package":{"name":"tnef","ecosystem":"Debian:14","purl":"pkg:deb/debian/tnef?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.18-4","1.4.18-5","1.4.18-6"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103679.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}