Ubuntu Security Notice 3229-1 – It was discovered that the Python Imaging Library incorrectly handled certain compressed text chunks in PNG images. A remote attacker could possibly use this issue to cause the Python Imaging Library to crash, resulting in a denial of service. Cris Neckar discovered that the Python Imaging Library incorrectly handled certain malformed images. A remote attacker could use this issue to cause the Python Imaging Library to crash, resulting in a denial of service, or possibly obtain sensitive information. Various other issues were also addressed.