====================================================================== Secunia Research 16/10/2007 - IrfanView Palette File Importing Buffer Overflow Vulnerability - ====================================================================== 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 3.99 and 4.00 NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Moderately 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 for Windows 9x/ME/NT/2000/ XP/2003/Vista. It is trying to be simple for beginners and powerful for professionals.". Product Link: http://www.irfanview.com/ ====================================================================== 4) Description of Vulnerability Secunia Research has discovered a vulnerability in IrfanView, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to a boundary error when importing palette (*.pal) files. This can be exploited to cause a stack-based buffer overflow by tricking a user into importing a specially crafted palette (*.pal) file. Successful exploitation allows the execution of arbitrary code. ====================================================================== 5) Solution Update to version 4.10. http://www.irfanview.com/main_download_engl.htm ====================================================================== 6) Time Table 28/08/2007 - Vendor notified. 28/08/2007 - Vendor response. 16/10/2007 - Public disclosure. ====================================================================== 7) Credits Discovered by Stefan Cornelius, Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2007-4343 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: https://www.flexera.com/ 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. 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. Secunia regularly hires new skilled team members. Check the URL below to see currently vacant positions: https://www.flexera.com/company/careers Secunia offers a FREE mailing list called Secunia Security Advisories: https://www.flexera.com/secunia_security_advisories/ ====================================================================== 10) Verification Please verify this advisory by visiting the Secunia website: https://www.flexera.com/about-us/secunia-research/advisories/sr-2007-71.html Complete list of vulnerability reports published by Secunia Research: https://www.flexera.com/about-us/secunia-research/advisories/ ======================================================================