{"id":"CVE-2021-34555","details":"OpenDMARC 1.4.1 and 1.4.1.1 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a multi-value From header field.","modified":"2026-07-08T05:57:33.709864036Z","published":"2021-06-10T15:15:09.680Z","database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"33"},{"last_affected":"33"},{"introduced":"34"},{"last_affected":"34"}],"source":"CPE_STRING","vendor_product":"fedoraproject:fedora"}]},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MAT4ZSWPQ5SUTMYCXRXI5SMTWL4AG7E/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZHZD4WZDYRBB2XVW2EQ4DQ2KYMAGPUO/"},{"type":"FIX","url":"https://github.com/trusteddomainproject/OpenDMARC/issues/179"},{"type":"FIX","url":"https://github.com/trusteddomainproject/OpenDMARC/pull/178"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/trusteddomainproject/opendmarc","events":[{"introduced":"2aafb015a56d40e8a1949dc6d2ab0057aaf8b32f"},{"last_affected":"106f3f49237d1a3176cd60df0f479e25f09a8491"}],"database_specific":{"source":"CPE_STRING","cpe":["cpe:2.3:a:trusteddomain:opendmarc:1.4.1:*:*:*:*:*:*:*","cpe:2.3:a:trusteddomain:opendmarc:1.4.1.1:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"1.4.1"},{"last_affected":"1.4.1"},{"introduced":"1.4.1.1"},{"last_affected":"1.4.1.1"}]}}],"versions":["1.4.1","1.4.1.1","rel-opendmarc-1-4-1-1","rel-opendmarc-1-4-1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-34555.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}