{"schema_version":"1.7.5","id":"CVE-2021-1404","published":"2021-04-08T05:15:13.267Z","modified":"2026-07-08T20:43:42.270747Z","related":["SUSE-SU-2021:1174-1","SUSE-SU-2021:1189-1","SUSE-SU-2021:1190-1","SUSE-SU-2021:14692-1","openSUSE-SU-2021:0555-1","openSUSE-SU-2024:10685-1"],"details":"A vulnerability in the PDF parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper buffer size tracking that may result in a heap buffer over-read. An attacker could exploit this vulnerability by sending a crafted PDF file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process to crash, resulting in a denial of service condition.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cisco-talos/clamav","events":[{"introduced":"31824a659dff37ae03e3419395bb68e659c2b165"},{"last_affected":"e7f5f53737f51f3b8395c12b1f804dc6c2181169"}],"database_specific":{"cpe":["cpe:2.3:a:clamav:clamav:0.103.0:*:*:*:*:*:*:*","cpe:2.3:a:clamav:clamav:0.103.1:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"0.103.0"},{"last_affected":"0.103.0"},{"introduced":"0.103.1"},{"last_affected":"0.103.1"}],"source":"CPE_STRING"}}],"versions":["0.103.0","0.103.1","clamav-0.103.1","clamav-0.103.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-1404.json"}}],"references":[{"type":"ADVISORY","url":"https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}