====================================================================== Secunia Research 30/12/2005 - TUGZip ARJ Archive Handling Buffer Overflow Vulnerability - ====================================================================== 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 * TUGZip 3.4.0.0 Other 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 TUGZip, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to a boundary error when handling an ARJ archive containing a file with an overly long filename. This can be exploited to cause a stack-based buffer overflow. Successful exploitation allows arbitrary code execution when a malicious ARJ file is opened. The vulnerability has been confirmed in version 3.4.0.0. Other versions may also be affected. ====================================================================== 4) Solution Do not open untrusted ARJ archives. ====================================================================== 5) Time Table 07/10/2005 - Initial vendor notification. 13/10/2005 - Initial vendor reply. 15/11/2005 - Reminder sent. 30/12/2005 - Public disclosure. ====================================================================== 6) Credits Discovered by Tan Chew Keong, Secunia Research. ====================================================================== 7) References No other references. ====================================================================== 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/2005-63/advisory/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================