{"id":"DEBIAN-CVE-2026-112273","details":"libtins through 4.6 contains a heap out-of-bounds read vulnerability in DNS::compose_name in src/dns.cpp that allows remote attackers to read past the packet buffer by sending a label ending exactly at the packet end. Attackers can deliver crafted DNS packets whose additional, answer, or authority records trigger a one-byte read when parsed, crashing applications on hardened allocators.","modified":"2026-10-20T05:00:07.580800744Z","published":"2026-10-19T22:47:33.493894837Z","upstream":["CVE-2026-112273"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-112273"}],"affected":[{"package":{"name":"libtins","ecosystem":"Debian:12","purl":"pkg:deb/debian/libtins?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0-1","4.5-1","4.5-1.1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112273.json"}},{"package":{"name":"libtins","ecosystem":"Debian:13","purl":"pkg:deb/debian/libtins?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5-1","4.5-1.1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112273.json"}},{"package":{"name":"libtins","ecosystem":"Debian:14","purl":"pkg:deb/debian/libtins?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5-1","4.5-1.1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112273.json"}}],"schema_version":"1.9.0"}