USN-550-2: Cairo regression

Releases

• Ubuntu 7.10
• Ubuntu 7.04

Packages

• libcairo -

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.

Update instructions

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

Ubuntu 7.10

• libcairo2 - 1.4.10-1ubuntu4.2

Ubuntu 7.04

• libcairo2 - 1.4.2-0ubuntu1.2

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

References

• https://launchpad.net/bugs/173861