{"id":"USN-4918-3","aliases":[],"status":"published","title":"clamav regression","description":"USN-4918-1 fixed vulnerabilities in ClamAV. The updated package could\nfail to properly scan in some situations. This update fixes\nthe problem.\n\nOriginal advisory details:\n\n It was discovered that ClamAV incorrectly handled parsing Excel documents.\n A remote attacker could possibly use this issue to cause ClamAV to hang,\n resulting in a denial of service. (CVE-2021-1252)\n\n It was discovered that ClamAV incorrectly handled parsing PDF documents. A\n remote attacker could possibly use this issue to cause ClamAV to crash,\n resulting in a denial of service. (CVE-2021-1404)\n\n It was discovered that ClamAV incorrectly handled parsing email. A remote\n attacker could possibly use this issue to cause ClamAV to crash, resulting\n in a denial of service. (CVE-2021-1405)","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2021-05-03T22:20:06Z","modified":"2026-06-29T13:48:53Z","fixes":[{"ecosystem":"Ubuntu:Pro:14.04:LTS","package":"clamav","fixed_in":["0.103.2+dfsg-0ubuntu0.14.04.1+esm2"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:16.04:LTS","package":"clamav","fixed_in":["0.103.2+dfsg-0ubuntu0.16.04.1+esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"clamav","fixed_in":["0.103.2+dfsg-0ubuntu0.18.04.2"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"clamav","fixed_in":["0.103.2+dfsg-0ubuntu0.20.04.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"clamav","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.103.2+dfsg-0ubuntu0.14.04.1+esm2"}]}],"versions":["0.97.8+dfsg-1ubuntu4","0.97.8+dfsg-1ubuntu5","0.98.1+dfsg-1ubuntu4","0.98.1+dfsg-1ubuntu5","0.98.1+dfsg-2ubuntu2","0.98.1+dfsg-4ubuntu1","0.98.1+dfsg-4ubuntu1.1","0.98.5+addedllvm-0ubuntu0.14.04.1","0.98.6+dfsg-0ubuntu0.14.04.1","0.98.7+dfsg-0ubuntu0.14.04.1","0.99.2+addedllvm-0ubuntu0.14.04.1","0.99.2+addedllvm-0ubuntu0.14.04.2","0.99.3+addedllvm-0ubuntu0.14.04.1","0.99.4+addedllvm-0ubuntu0.14.04.1","0.100.1+dfsg-1ubuntu0.14.04.1","0.100.1+dfsg-1ubuntu0.14.04.2","0.100.1+dfsg-1ubuntu0.14.04.3","0.100.1+dfsg-1ubuntu0.14.04.4","0.100.2+dfsg-1ubuntu0.14.04.1","0.100.2+dfsg-1ubuntu0.14.04.2","0.100.3+dfsg-0ubuntu0.14.04.1","0.100.3+dfsg-0ubuntu0.14.04.1+esm1","0.101.4+dfsg-0ubuntu0.14.04.1+esm1","0.102.1+dfsg-0ubuntu0.14.04.1+esm1","0.102.2+dfsg-0ubuntu0.14.04.1+esm1","0.102.3+dfsg-0ubuntu0.14.04.1+esm1","0.102.4+dfsg-0ubuntu0.14.04.1+esm1","0.103.2+dfsg-0ubuntu0.14.04.1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"clamav","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.103.2+dfsg-0ubuntu0.16.04.1+esm1"}]}],"versions":["0.98.7+dfsg-0ubuntu4","0.98.7+dfsg-0ubuntu5","0.99+dfsg-1ubuntu1","0.99+dfsg-1ubuntu1.1","0.99+dfsg-1ubuntu1.2","0.99.2+dfsg-0ubuntu0.16.04.1","0.99.2+dfsg-0ubuntu0.16.04.2","0.99.2+dfsg-0ubuntu0.16.04.3","0.99.3+addedllvm-0ubuntu0.16.04.1","0.99.4+addedllvm-0ubuntu0.16.04.1","0.100.1+dfsg-1ubuntu0.16.04.1","0.100.1+dfsg-1ubuntu0.16.04.2","0.100.1+dfsg-1ubuntu0.16.04.3","0.100.2+dfsg-1ubuntu0.16.04.1","0.100.3+dfsg-0ubuntu0.16.04.1","0.101.4+dfsg-0ubuntu0.16.04.1","0.102.1+dfsg-0ubuntu0.16.04.2","0.102.2+dfsg-0ubuntu0.16.04.1","0.102.3+dfsg-0ubuntu0.16.04.1","0.102.4+dfsg-0ubuntu0.16.04.1","0.103.2+dfsg-0ubuntu0.16.04.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"clamav","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.103.2+dfsg-0ubuntu0.18.04.2"}]}],"versions":["0.99.2+dfsg-6ubuntu2","0.99.3~beta1+dfsg-2ubuntu1","0.99.3~beta1+dfsg-2ubuntu2","0.99.3+addedllvm-0ubuntu1","0.99.3+addedllvm-0ubuntu2","0.99.4+addedllvm-0ubuntu1","0.100.1+dfsg-1ubuntu0.18.04.1","0.100.1+dfsg-1ubuntu0.18.04.2","0.100.1+dfsg-1ubuntu0.18.04.3","0.100.2+dfsg-1ubuntu0.18.04.1","0.100.3+dfsg-0ubuntu0.18.04.1","0.101.4+dfsg-0ubuntu0.18.04.1","0.102.1+dfsg-0ubuntu0.18.04.2","0.102.2+dfsg-0ubuntu0.18.04.1","0.102.3+dfsg-0ubuntu0.18.04.1","0.102.4+dfsg-0ubuntu0.18.04.1","0.103.2+dfsg-0ubuntu0.18.04.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"clamav","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.103.2+dfsg-0ubuntu0.20.04.2"}]}],"versions":["0.101.4+dfsg-1ubuntu1","0.102.1+dfsg-1ubuntu1","0.102.1+dfsg-2ubuntu1","0.102.1+dfsg-2ubuntu2","0.102.2+dfsg-1ubuntu1","0.102.2+dfsg-2ubuntu1","0.102.3+dfsg-0ubuntu0.20.04.1","0.102.4+dfsg-0ubuntu0.20.04.1","0.103.2+dfsg-0ubuntu0.20.04.1"]}],"references":[{"url":"https://ubuntu.com/security/notices/USN-4918-3","tags":["advisory"]},{"url":"https://launchpad.net/bugs/1926300","tags":["report"]}],"sources":{"osv":[{"id":"USN-4918-3","title":"clamav regression","description":"USN-4918-1 fixed vulnerabilities in ClamAV. The updated package could\nfail to properly scan in some situations. This update fixes\nthe problem.\n\nOriginal advisory details:\n\n It was discovered that ClamAV incorrectly handled parsing Excel documents.\n A remote attacker could possibly use this issue to cause ClamAV to hang,\n resulting in a denial of service. (CVE-2021-1252)\n\n It was discovered that ClamAV incorrectly handled parsing PDF documents. A\n remote attacker could possibly use this issue to cause ClamAV to crash,\n resulting in a denial of service. (CVE-2021-1404)\n\n It was discovered that ClamAV incorrectly handled parsing email. A remote\n attacker could possibly use this issue to cause ClamAV to crash, resulting\n in a denial of service. (CVE-2021-1405)\n","status":"published","published":"2021-05-03T22:20:06Z","modified":"2026-06-29T13:48:53.307884567Z","updated_at":"2026-11-02T16:58:15.159055Z"}]}}