====================================================================== Secunia Research 23/02/2006 - WinACE ARJ Archive Handling 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 * WinACE Version 2.60 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 WinACE, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to a boundary error when reading an overly large ARJ header block into a fixed-sized heap buffer. This can be exploited to cause a heap-based buffer overflow. Successful exploitation allows execution of arbitrary code when a malicious ARJ archive is opened. ====================================================================== 4) Solution The vulnerability will be fixed in version 2.61. ====================================================================== 5) Time Table 26/10/2005 - Initial vendor notification. 31/10/2005 - Initial vendor reply. 31/10/2005 - Vendor sends fixed version for testing. 15/11/2005 - Vendor reminder. 23/01/2006 - Vendor reminder. 21/02/2006 - Vendor reminder. 23/02/2006 - Public disclosure. ====================================================================== 6) Credits Discovered by Tan Chew Keong, Secunia Research. ====================================================================== 7) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2006-0813 for the vulnerability. ====================================================================== 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/2005-67/advisory/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================