Several vulnerabilities have been discovered in libpng, a library for reading and writing PNG files. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2010-1205 It was discovered a buffer overflow in libpng which allows remote attackers to execute arbitrary code via a PNG image that triggers an additional data row. CVE-2010-2249 It was discovered a memory leak in libpng which allows remote attackers to cause a denial of service via a PNG image containing malformed Physical Scale chunks For the stable distribution , these problems have been fixed in version 1.2.27-2+lenny4. For the testing and unstable distribution, these problems have been fixed in version 1.2.44-1 We recommend that you upgrade your libpng package.