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Debian LTS Advisory DLA-3546-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                           Chris Lamb
August 28, 2023                               https://wiki.debian.org/LTS
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Package        : opendmarc
Version        : 1.3.2-6+deb10u3
CVE ID         : CVE-2020-12272
Debian Bug     : 977767

It was discovered that there was an issue in the opendmarc DMARC
email filter system. A vulnerability allowed attackers to inject
authentication results to provide false information about the domain
that originated an email message. This was caused by incorrect
parsing and interpretation of SPF/DKIM authentication results.

For Debian 10 buster, this problem has been fixed in version
1.3.2-6+deb10u3.

We recommend that you upgrade your opendmarc packages.

For the detailed security status of opendmarc please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/opendmarc

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS