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USN-550-2: Cairo regression

10 December 2007

Cairo regression

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Releases

Packages

Details

USN-550-1 fixed vulnerabilities in Cairo. The upstream fixes were incomplete,
and under certain situations, applications using Cairo would crash with a
floating point error. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Peter Valchev discovered that Cairo did not correctly decode PNG image data.
By tricking a user or automated system into processing a specially crafted
PNG with Cairo, a remote attacker could execute arbitrary code with user
privileges.

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 7.10
Ubuntu 7.04

After a standard system upgrade you need to restart your session to effect
the necessary changes.