Description
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart.
Related CPE's
a
avahi
avahi
2
References
https://github.com/avahi/avahi/issues/678
Issue TrackingExploitPatch
https://github.com/avahi/avahi/security/advisories/GHSA-56rf-42xr-qmmg
Vendor AdvisoryExploitPatch
CVSS impact metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.5 · Medium
Information
Source identifier
Vulnerability status
Analyzed
Published
2026-01-12T18:15:48.327Z
4 days agoLast modified
2026-01-16T16:53:04.697Z
2 hours ago