====================================================================== Secunia Research 14/06/2006 - PicoZip "zipinfo.dll" Multiple Archives Buffer Overflow - ====================================================================== Table of Contents Affected Software....................................................1 Severity.............................................................2 Description of Vulnerability.........................................3 Solution.............................................................4 Time Table...........................................................5 Credits..............................................................6 References...........................................................7 About Secunia........................................................8 Verification.........................................................9 ====================================================================== 1) Affected Software * PicoZip version 4.01 Prior versions may also be affected. ====================================================================== 2) Severity Rating: Moderately Critical Impact: System Access Where: Remote ====================================================================== 3) Description of Vulnerability Secunia Research has discovered a vulnerability in PicoZip, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to a boundary error within the "zipinfo.dll" info tip shell extension when reading a ACE, RAR, or ZIP archive that contains a file with an overly long filename. This can be exploited to cause a stack-based buffer overflow when the user moves the mouse cursor over a malicious archive either in Windows Explorer or from any program that uses the file-open dialog box. Successful exploitation allows arbitrary code execution. ====================================================================== 4) Solution Update to version 4.02. http://www.picozip.com/downloads.html ====================================================================== 5) Time Table 06/06/2006 - Initial vendor notification. 07/06/2006 - Initial vendor reply. 14/06/2006 - Public disclosure. ====================================================================== 6) Credits Discovered by Tan Chew Keong, Secunia Research. ====================================================================== 7) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2006-2909 for the vulnerability. Acubix: http://www.picozip.com/changelog.html ====================================================================== 8) About Secunia Secunia collects, validates, assesses, and writes advisories regarding all the latest software vulnerabilities disclosed to the public. These advisories are gathered in a publicly available database at the Secunia website: http://secunia.com/ Secunia offers services to our customers enabling them to receive all relevant vulnerability information to their specific system configuration. Secunia offers a FREE mailing list called Secunia Security Advisories: http://secunia.com/secunia_security_advisories/ ====================================================================== 9) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2006-42/advisory/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================