USN-3876-1: Avahi vulnerabilities
avahi vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
Several security issues were fixed in Avahi.
Software Description
- avahi – Avahi IPv4LL network address configuration daemon
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 18.10
- avahi-daemon – 0.7-4ubuntu2.1
- libavahi-core7 – 0.7-4ubuntu2.1
- Ubuntu 18.04 LTS
- avahi-daemon – 0.7-3.1ubuntu1.2
- libavahi-core7 – 0.7-3.1ubuntu1.2
- Ubuntu 16.04 LTS
- avahi-daemon – 0.6.32~rc+dfsg-1ubuntu2.3
- libavahi-core7 – 0.6.32~rc+dfsg-1ubuntu2.3
- Ubuntu 14.04 LTS
- avahi-daemon – 0.6.31-4ubuntu1.3
- libavahi-core7 – 0.6.31-4ubuntu1.3
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
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