CVE-2009-0758

The originates_from_local_legacy_unicast_socket function in
avahi-core/server.c in avahi-daemon 0.6.23 does not account for the network
byte order of a port number when processing incoming multicast packets,
which allows remote attackers to cause a denial of service (network
bandwidth and CPU consumption) via a crafted legacy unicast mDNS query
packet that triggers a multicast packet storm.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=517683&gt;
• <https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-0758&gt;

Notes