Avahi is an implementation of the DNS Service Discovery and Multicast DNSspecifications for Zeroconf Networking. It facilitates service discovery ona local network. Avahi and Avahi-aware applications allow you to plug yourcomputer into a network and, with no configuration, view other people tochat with, see printers to print to, and find shared files on other computers.Hugo Dias discovered a denial of service flaw in avahi-daemon. A remoteattacker on the same local area network (LAN) could send aspecially-crafted mDNS (Multicast DNS) packet that would cause avahi-daemonto exit unexpectedly due to a failed assertion check. (CVE-2008-5081)All users are advised to upgrade to these updated packages, which contain abackported patch which resolves this issue. After installing the update,avahi-daemon will be restarted automatically.