USN-6356-1: OpenDMARC vulnerabilities

Publication date

11 September 2023

Overview

Several security issues were fixed in OpenDMARC.


Packages

  • opendmarc - Open Source implementation of the DMARC specification

Details

Jianjun Chen, Vern Paxson and Jian Jiang discovered that OpenDMARC
incorrectly handled certain inputs. If a user or an automated system were
tricked into receiving crafted inputs, an attacker could possibly use this
to falsify the domain of an e-mails origin. (CVE-2020-12272)

Patrik Lantz discovered that OpenDMARC incorrectly handled certain inputs.
If a user or an automated system were tricked into opening a specially
crafted input file, a remote attacker could possibly use this issue to
cause a denial of service. (CVE-2020-12460)

Jianjun Chen, Vern Paxson and Jian Jiang discovered that OpenDMARC
incorrectly handled certain inputs. If a user or an automated system were
tricked into receiving crafted inputs, an attacker could possibly use this
to falsify the domain of an e-mails origin. (CVE-2020-12272)

Patrik Lantz discovered that OpenDMARC incorrectly handled certain inputs.
If a user or an automated system were tricked into opening a specially
crafted input file, a remote attacker could possibly use this issue to
cause a denial of service. (CVE-2020-12460)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
20.04 focal libopendmarc2 –  1.3.2-7ubuntu0.1
opendmarc –  1.3.2-7ubuntu0.1
18.04 bionic libopendmarc2 –  1.3.2-3ubuntu0.2
opendmarc –  1.3.2-3ubuntu0.2
16.04 xenial libopendmarc2 –  1.3.1+dfsg-3ubuntu0.1~esm1  
opendmarc –  1.3.1+dfsg-3ubuntu0.1~esm1  

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