USN-472-1: libpng vulnerability
12 June 2007
It was discovered that libpng did not correctly handle corrupted CRC
in grayscale PNG images. By tricking a user into opening a specially
crafted PNG, a remote attacker could cause the application using libpng
to crash, resulting in a denial of service.
The problem can be corrected by updating your system to the following package versions:
After a standard system upgrade you need to reboot your computer to
effect the necessary changes.