CVE-2019-16378

high-risk

Published 2019-09-17

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.

Do I need to act?

1.2% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (9)

Opendmarc

Debian Linux

Fedora

Ubuntu Linux

Affected Vendors

Debian Canonical Fedoraproject Trusteddomain

References (20)

Mailing List http://www.openwall.com/lists/oss-security/2019/09/17/2

Mailing List https://bugs.debian.org/940081

Patch https://github.com/trusteddomainproject/OpenDMARC/pull/48

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Mailing List https://seclists.org/bugtraq/2019/Sep/36

Third Party Advisory https://usn.ubuntu.com/4567-1/

Third Party Advisory https://www.debian.org/security/2019/dsa-4526

Mailing List https://www.openwall.com/lists/oss-security/2019/09/11/8

Mailing List http://www.openwall.com/lists/oss-security/2019/09/17/2

Mailing List https://bugs.debian.org/940081

Patch https://github.com/trusteddomainproject/OpenDMARC/pull/48

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Mailing List https://seclists.org/bugtraq/2019/Sep/36

Third Party Advisory https://usn.ubuntu.com/4567-1/

Third Party Advisory https://www.debian.org/security/2019/dsa-4526

Mailing List https://www.openwall.com/lists/oss-security/2019/09/11/8

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high-risk

Severity 32/34 · Critical

Exploitability 4/34 · Minimal

Exposure 15/34 · Moderate