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CVE-2009-0758

Published: 3 March 2009

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.

Notes

AuthorNote
mdeslaur
low priority as reflector is not enabled by default

Priority

Low

Status

Package Release Status
avahi
Launchpad, Ubuntu, Debian
dapper Ignored
(end of life)
gutsy Ignored
(end of life, was needed)
hardy
Released (0.6.22-2ubuntu4.2)
intrepid Ignored
(end of life, was needed)
jaunty
Released (0.6.23-4ubuntu4.1)
karmic Not vulnerable
(0.6.25-1ubuntu5.1)
lucid Not vulnerable

upstream
Released (0.6.24-3)
Patches:
vendor: http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=5;filename=server.patch;att=1;bug=517683
upstream: http://git.0pointer.de/?p=avahi.git;a=commit;h=6fabf9d5189cf0efb86af1cd57e5399f8e31112a