{"id":"DEBIAN-CVE-2011-2721","details":"Off-by-one error in the cli_hm_scan function in matcher-hash.c in libclamav in ClamAV before 0.97.2 allows remote attackers to cause a denial of service (daemon crash) via an e-mail message that is not properly handled during certain hash calculations.","modified":"2026-09-24T06:47:35.705439503Z","published":"2011-08-05T21:55:08.843Z","upstream":["CVE-2011-2721"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2011-2721"}],"affected":[{"package":{"name":"clamav","ecosystem":"Debian:12","purl":"pkg:deb/debian/clamav?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.97.2+dfsg-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-2721.json"}},{"package":{"name":"clamav","ecosystem":"Debian:13","purl":"pkg:deb/debian/clamav?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.97.2+dfsg-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-2721.json"}},{"package":{"name":"clamav","ecosystem":"Debian:14","purl":"pkg:deb/debian/clamav?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.97.2+dfsg-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2011-2721.json"}}],"schema_version":"1.9.0"}