Loop with Unreachable Exit Condition ('Infinite Loop') Affecting avahi package, versions <0.7-4ubuntu7.1
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Test your applications- Snyk ID SNYK-UBUNTU2004-AVAHI-1089693
- published 30 Mar 2021
- disclosed 2 Jun 2021
Introduced: 30 Mar 2021
CVE-2021-3468 Open this link in a new tabHow to fix?
Upgrade Ubuntu:20.04 avahi to version 0.7-4ubuntu7.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream avahi package and not the avahi package as distributed by Ubuntu.
See How to fix? for Ubuntu:20.04 relevant fixed versions and status.
A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the availability of the avahi service, which becomes unresponsive after this flaw is triggered.