====================================================================== Secunia Research 11/08/2010 - glpng PNG Processing Two Integer Overflow Vulnerabilities - ====================================================================== Table of Contents Affected Software....................................................1 Severity.............................................................2 Vendor's Description of Software.....................................3 Description of Vulnerability.........................................4 Solution.............................................................5 Time Table...........................................................6 Credits..............................................................7 References...........................................................8 About Secunia........................................................9 Verification........................................................10 ====================================================================== 1) Affected Software * glpng 1.45 NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Moderately critical Impact: System access Where: Remote ====================================================================== 3) Vendor's Description of Software "This is a library for OpenGL to load PNG graphics files as an OpenGL texture as easily as possible. It also has a number of options for generating the alpha channel and mipmaps.". Product Link: http://www.fifi.org/doc/libglpng-dev/glpng.html ====================================================================== 4) Description of Vulnerability Secunia Research has discovered two vulnerabilities in glpng, which can be exploited by malicious people to compromise an application using the library. 1) An integer overflow error within the "pngLoadRawF()" function in glpng.c can be exploited to cause a heap-based buffer overflow by e.g. tricking a user into opening a specially crafted PNG file in an application using the library. 2) An integer overflow error within the "pngLoadF()" function in glpng.c can be exploited to cause a heap-based buffer overflow by e.g. tricking a user into opening a specially crafted PNG file in an application using the library. ====================================================================== 5) Solution Do not load untrusted images using the library. ====================================================================== 6) Time Table 24/06/2010 - Vendor and vendor-sec notified. 11/08/2010 - Response on vendor-sec 11/08/2010 - Public disclosure. ====================================================================== 7) Credits Discovered by Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2010-1519 for the vulnerabilities. ====================================================================== 9) About Secunia Secunia offers vulnerability management solutions to corporate customers with verified and reliable vulnerability intelligence relevant to their specific system configuration: http://secunia.com/advisories/business_solutions/ Secunia also provides a publicly accessible and comprehensive advisory database as a service to the security community and private individuals, who are interested in or concerned about IT-security. http://secunia.com/advisories/ Secunia believes that it is important to support the community and to do active vulnerability research in order to aid improving the security and reliability of software in general: http://secunia.com/secunia_research/ Secunia regularly hires new skilled team members. Check the URL below to see currently vacant positions: http://secunia.com/corporate/jobs/ Secunia offers a FREE mailing list called Secunia Security Advisories: http://secunia.com/advisories/mailing_lists/ ====================================================================== 10) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2010-87/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================