USN-960-1: libpng vulnerabilities
8 July 2010
libpng vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.04 LTS
- Ubuntu 9.10
- Ubuntu 9.04
- Ubuntu 8.04 LTS
- Ubuntu 6.06 LTS
Summary
Software Description
- libpng
Details
It was discovered that libpng did not properly handle certain malformed PNG images. If a user or automated system were tricked into opening a crafted PNG file, an attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program. (CVE-2010-1205)
It was discovered that libpng did not properly handle certain malformed PNG images. If a user or automated system were tricked into processing a crafted PNG image, an attacker could possibly use this flaw to consume all available resources, resulting in a denial of service. (CVE-2010-2249)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 10.04 LTS
- libpng12-0 - 1.2.42-1ubuntu2.1
- Ubuntu 9.10
- libpng12-0 - 1.2.37-1ubuntu0.2
- Ubuntu 9.04
- libpng12-0 - 1.2.27-2ubuntu2.2
- Ubuntu 8.04 LTS
- libpng12-0 - 1.2.15~beta5-3ubuntu0.3
- Ubuntu 6.06 LTS
- libpng12-0 - 1.2.8rel-5ubuntu0.6
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make all the necessary changes.