VulnerabilityModified
CVE-2021-34555
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.
HIGH 7.5EPSS 2.75%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.75%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.75% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- trusteddomain/opendmarc · fedoraproject/fedora
- Source
- cve@mitre.org
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/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.