{"id":"CVE-2011-2721","aliases":["DEBIAN-CVE-2011-2721","EUVD-2011-2699","GHSA-x69w-v5wv-rxpx","openSUSE-SU-2024:10571-1"],"status":"published","title":"Off-by-one error in the cli_hm_scan function in matcher-hash.c in libclamav in ClamAV before 0.97...","description":"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.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03377,"percentile":0.88853,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-189"],"published":"2011-08-05T21:00:00Z","modified":"2026-10-23T17:47:25Z","fixes":[{"ecosystem":"Debian:12","package":"clamav","fixed_in":["0.97.2+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"clamav","fixed_in":["0.97.2+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"clamav","fixed_in":["0.97.2+dfsg-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"clamav","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.97.2+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"clamav","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.97.2+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"clamav","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.97.2+dfsg-1"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"clamav","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.99.2-4.1"}]}],"bundled":16}],"products":[{"vendor":"clamav","product":"clamav"}],"references":[{"url":"http://secunia.com/advisories/45382","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor 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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.","status":"published","published":"2011-08-05T21:00:00Z","modified":"2024-08-06T23:08:23.733Z","updated_at":"2026-11-02T14:35:36.968002Z"}],"euvd":[{"id":"EUVD-2011-2699","description":"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.","status":"published","published":"2011-08-05T21:00:00Z","modified":"2024-08-06T23:08:23Z","updated_at":"2026-11-03T01:39:54.68331Z"}],"ghsa":[{"id":"GHSA-x69w-v5wv-rxpx","title":"Off-by-one error in the cli_hm_scan function in matcher-hash.c in libclamav in ClamAV before 0.97...","description":"Off-by-one error in 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