{"id":"DEBIAN-CVE-2026-88383","details":"libical 4.0.6 contains an incompatible function pointer in icalparameter_string_to_kind(). When parsing iCalendar data containing a parameterized property, the function passes icalparameter_compare_kind_map() to bsearch() through an incompatible comparator function pointer type. bsearch() invokes the callback through the mismatched type, resulting in undefined behavior and process termination, leading to denial of service.","modified":"2026-10-07T10:00:13.087359860Z","published":"2026-09-24T17:17:07.787Z","upstream":["CVE-2026-88383"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-88383"}],"affected":[{"package":{"name":"libical3","ecosystem":"Debian:12","purl":"pkg:deb/debian/libical3?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.16-1","3.0.17-1","3.0.17-1.1","3.0.17-1.1~exp1","3.0.18-1","3.0.19-1","3.0.19-2","3.0.19-3","3.0.19-4","3.0.20-1","3.0.20-2","3.0.20-3"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88383.json"}},{"package":{"name":"libical3","ecosystem":"Debian:13","purl":"pkg:deb/debian/libical3?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.20-1","3.0.20-2","3.0.20-3"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88383.json"}},{"package":{"name":"libical3","ecosystem":"Debian:14","purl":"pkg:deb/debian/libical3?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.20-1","3.0.20-2","3.0.20-3"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88383.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}