avahi: daemon infinite loop triggered by an empty UDP packet (CVE-2010-2244 fix regression)

avahi-core/socket.c in avahi-daemon in Avahi before 0.6.29 allows remote attackers to cause a denial of service infinite loop via an empty mDNS 1 IPv4 or 2 IPv6 UDP packet to port 5353. NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-2244...