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.
Problem types
Product status
References
github.com/.../avahi/security/advisories/GHSA-cp79-r4x9-vf52
github.com/avahi/avahi/issues/683
github.com/...ommit/f66be13d7f31a3ef806d226bf8b67240179d309a