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USN-1084-1: avahi vulnerability

7 March 2011

An attacker could send crafted input to Avahi and cause it to hang.

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Releases

Packages

  • avahi - Avahi IPv4LL network address configuration daemon

Details

It was discovered that Avahi incorrectly handled empty UDP packets. A
remote attacker could send a specially-crafted packet and cause Avahi to
hang, resulting in a denial of service.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 9.10
Ubuntu 8.04
Ubuntu 10.10
Ubuntu 10.04

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

References

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Further reading