| Name | CVE-2025-68468 |
| 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 unsolicited announcements containing CNAME resource records pointing it to resource records with short TTLs. As soon as they expire avahi-daemon crashes. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1125418 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| avahi (PTS) | bullseye | 0.8-5+deb11u2 | vulnerable |
| bullseye (security) | 0.8-5+deb11u3 | vulnerable |
| bookworm | 0.8-10+deb12u1 | vulnerable |
| trixie | 0.8-16 | vulnerable |
| forky | 0.8-17 | vulnerable |
| sid | 0.8-18 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| avahi | source | (unstable) | 0.8-18 | | | 1125418 |
Notes
[trixie] - avahi <no-dsa> (Minor issue)
[bookworm] - avahi <no-dsa> (Minor issue)
[bullseye] - avahi <postponed> (Minor issue, clean/assertion crash, revisit when 0.9 is released and packaged)
https://github.com/avahi/avahi/security/advisories/GHSA-cp79-r4x9-vf52
https://github.com/avahi/avahi/issues/683
Fixed by: https://github.com/avahi/avahi/commit/f66be13d7f31a3ef806d226bf8b67240179d309a