CVE-2021-3468

MEDIUM

Avahi < 0.8 - Infinite Loop

Title source: rule
STIX 2.1

Description

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.

References (3)

Core 3
Core References
Issue Tracking x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1939614
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/06/msg00009.html

Scores

CVSS v3 5.5
EPSS 0.0003
EPSS Percentile 8.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-835
Status published
Products (2)
avahi/avahi 0.6 - 0.8
debian/debian_linux 9.0
Published Jun 02, 2021
Tracked Since Feb 18, 2026