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USN-3876-1: Avahi vulnerabilities

31 January 2019

Several security issues were fixed in Avahi.



  • avahi - Avahi IPv4LL network address configuration daemon


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 18.10
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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

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