Gentoo Linux Security Advisory GLSA 200904-10 – An error in Avahi might lead to a Denial of Service via network and CPU consumption. Rob Leslie reported that the originates_from_local_legacy_unicast_socket() function in avahi-core/server.c does not account for the network byte order of a port number when processing incoming multicast packets, leading to a multicast packet storm. Versions less than 0.6.24-r2 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/76474/glsa-200904-10.txt
Source: https://packetstormsecurity.com/files/76474/Gentoo-Linux-Security-Advisory-200904-10.html