USN-3876-2: Avahi vulnerabilities

31 January 2019

avahi vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.04 ESM


Several security issues were fixed in Avahi.

Software Description

  • avahi - Avahi IPv4LL network address configuration daemon


USN-3876-1 fixed a vulnerability in Avahi. This update provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Chad Seaman discovered that Avahi incorrectly handled certain messages. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-6519, CVE-2018-1000845)

Update instructions

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

Ubuntu 12.04 ESM
avahi-daemon - 0.6.30-5ubuntu2.3
libavahi-core7 - 0.6.30-5ubuntu2.3

To update your system, please follow these instructions:

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