CVE-2019-16378

Description

OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 is prone to a signature-bypass vulnerability with multiple From: addresses, which might affect applications that consider a domain name to be relevant to the origin of an e-mail message.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.60%
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/trusteddomainproject/OpenDMARC/pull/48 third party advisory patch
https://bugs.debian.org/940081 third party advisory mailing list
https://www.openwall.com/lists/oss-security/2019/09/11/8 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2019/09/17/2 mailing list
https://www.debian.org/security/2019/dsa-4526 third party advisory vendor advisory
https://seclists.org/bugtraq/2019/Sep/36 third party advisory mailing list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEUBIHJLMPMB6KHOSGDMUQKSAW4HOCYM/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y7RT6ID7MBCEPNZEIUKK2TZIOCYPJR6E/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HEWDFGRKQHIWKFZH5BNWQDGUPNR7VH3/ vendor advisory
https://usn.ubuntu.com/4567-1/ third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-16378?
CVE-2019-16378 has been scored as a critical severity vulnerability.
How to fix CVE-2019-16378?
To fix CVE-2019-16378, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-16378 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-16378 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.