CVE-2021-3468
MEDIUM5.5EPSS 0.03%avahi - security update
Published: 6/2/2021Modified: 4/28/2026
Also known as:ALPINE-CVE-2021-3468DEBIAN-CVE-2021-3468
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.
Affected packages (3)
- Alpine/avahifrom 0, < 0.8-r1
- Debian/avahifrom 0, < 0.8-5+deb11u2
- Debian/avahifrom 0, < 0.7-4+deb10u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |