USN-4567-1: OpenDMARC vulnerability

Releases

• Ubuntu 18.04 ESM

Packages

• opendmarc - Open Source implementation of the DMARC specification

Details

It was discovered that OpenDMARC is prone to a signature-bypass vulnerability
with multiple "From:" addresses. An attacker could use it to bypass spam and
abuse filters.

Update instructions

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

Ubuntu 18.04

• libopendmarc2 - 1.3.2-3ubuntu0.1
• opendmarc - 1.3.2-3ubuntu0.1
• rddmarc - 1.3.2-3ubuntu0.1

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

References

• CVE-2019-16378