USN-992-1: Avahi vulnerabilities

Packages

avahi -

Details

It was discovered that Avahi incorrectly handled certain mDNS query packets
when the reflector feature is enabled, which is not the default
configuration on Ubuntu. A remote attacker could send crafted mDNS queries
and perform a denial of service on the server and on the network. This
issue only affected Ubuntu 8.04 LTS and 9.04. (CVE-2009-0758)

It was discovered that Avahi incorrectly handled mDNS packets with
corrupted checksums. A remote attacker could send crafted mDNS packets and
cause Avahi to crash, resulting in a denial of service. (CVE-2010-2244)

It was discovered that Avahi incorrectly handled certain mDNS query packets
when the reflector feature is enabled, which is not the default
configuration on Ubuntu. A remote attacker could send crafted mDNS queries
and perform a denial of service on the server and on the network. This
issue only affected Ubuntu 8.04 LTS and 9.04. (CVE-2009-0758)

It was discovered that Avahi incorrectly handled mDNS packets with
corrupted checksums. A remote attacker could send crafted mDNS packets and
cause Avahi to crash, resulting in a denial of service. (CVE-2010-2244)

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

Ubuntu Release	Package Version
9.10 karmic	libavahi-core6 – 0.6.25-1ubuntu5.2
9.04 jaunty	libavahi-core5 – 0.6.23-4ubuntu4.1
8.04 hardy	libavahi-core5 – 0.6.22-2ubuntu4.2
10.04 lucid	libavahi-core6 – 0.6.25-1ubuntu6.1

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