{"id":"CVE-2021-34555","aliases":["ALPINE-CVE-2021-34555","DEBIAN-CVE-2021-34555","EUVD-2021-21205","GHSA-9774-4j5q-whvj"],"status":"published","title":"OpenDMARC 1.4.1 and 1.4.1.1 allows remote attackers to cause a denial of service (NULL pointer...","description":"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 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Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/trusteddomainproject/OpenDMARC/pull/178","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZHZD4WZDYRBB2XVW2EQ4DQ2KYMAGPUO/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MAT4ZSWPQ5SUTMYCXRXI5SMTWL4AG7E/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34555"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2MAT4ZSWPQ5SUTMYCXRXI5SMTWL4AG7E/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VZHZD4WZDYRBB2XVW2EQ4DQ2KYMAGPUO/"},{"url":"https://github.com/advisories/GHSA-9774-4j5q-whvj"},{"url":"https://security.alpinelinux.org/vuln/CVE-2021-34555","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-34555","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2021-34555","description":"OpenDMARC 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field.","status":"published","published":"2021-06-10T15:15:09.68Z","modified":"2026-10-23T18:03:15.21785751Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:35.233346Z"}]}}