CVE-2021-34555

HighCVSS 7.5/10Last modified Jun 17, 2026

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 field.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/trusteddomainproject/OpenDMARC/issues/179Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/trusteddomainproject/OpenDMARC/pull/178Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MAT4ZSWPQ5SUTMYCXRXI5SMTWL4AG7E/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZHZD4WZDYRBB2XVW2EQ4DQ2KYMAGPUO/
https://github.com/trusteddomainproject/OpenDMARC/issues/179Exploit, Issue Tracking, Patch, Third Party Advisory
https://github.com/trusteddomainproject/OpenDMARC/pull/178Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MAT4ZSWPQ5SUTMYCXRXI5SMTWL4AG7E/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZHZD4WZDYRBB2XVW2EQ4DQ2KYMAGPUO/

Timeline

Published: Jun 10, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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