====================================================================== Secunia Research 07/04/2009 - IrfanView Formats Plug-in XPM Parsing Integer Overflow - ====================================================================== 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 * IrfanView Formats Plug-in 4.22 NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Highly critical Impact: System access Where: From remote ====================================================================== 3) Vendor's Description of Software "IrfanView is a very fast, small, compact and innovative FREEWARE (for non-commercial use) graphic viewer.". Product Link: http://www.irfanview.com/plugins.htm ====================================================================== 4) Description of Vulnerability Secunia Research has discovered a vulnerability in IrfanView's Formats plug-in, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to an integer overflow when processing XPM files with certain dimensions. This can be exploited to cause a heap-based buffer overflow by e.g. tricking a user into opening a specially crafted XPM file. ====================================================================== 5) Solution Update to version 4.23. ====================================================================== 6) Time Table 31/03/2009 - Vendor notified. 01/04/2009 - Vendor response. 06/04/2009 - Vendor issues fixed version. 07/04/2009 - Public disclosure. ====================================================================== 7) Credits Discovered by Stefan Cornelius, Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2009-0197 for the vulnerability. ====================================================================== 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/2009-20/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================