Loop with Unreachable Exit Condition ('Infinite Loop') Affecting avahi package, versions <0.7-4+deb10u3
Snyk CVSS
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Test your applications- Snyk ID SNYK-DEBIAN10-AVAHI-1089437
- published 28 Mar 2021
- disclosed 2 Jun 2021
Introduced: 28 Mar 2021
CVE-2021-3468 Open this link in a new tabHow to fix?
Upgrade Debian:10 avahi to version 0.7-4+deb10u3 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 Debian.
See How to fix? for Debian:10 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.