ZipGenius Multiple Archive Handling BufferOverflow

2005.10.21
Risk: Medium
Local: No
Remote: Yes
CWE: N/A


Ogólna skala CVSS: 7.5/10
Znaczenie: 6.4/10
Łatwość wykorzystania: 10/10
Wymagany dostęp: Zdalny
Złożoność ataku: Niska
Autoryzacja: Nie wymagana
Wpływ na poufność: Częściowy
Wpływ na integralność: Częściowy
Wpływ na dostępność: Częściowy

====================================================================== Secunia Research 21/10/2005 - ZipGenius Multiple 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 ZipGenius Version 5.5.1.468 and 6.0.2.1041. Prior versions may also be affected. ====================================================================== 2) Severity Rating: Moderately Critical Impact: System access Where: Remote ====================================================================== 3) Description of Vulnerability Secunia Research has discovered some vulnerabilities in ZipGenius, which can be exploited by malicious people to compromise a user's system. 1) A boundary error exists in "zipgenius.exe", "zg.exe", "zgtips.dll", and "contmenu.dll" when reading the filename of a compressed file from a ZIP archive. This can be exploited to cause a stack-based buffer overflow when a malicious archive containing a file with an overly long filename is read either in ZipGenius or from Windows Explorer. 2) A boundary error exists in "zipgenius.exe" when handling the original name of a UUE/XXE/MIM encoded file. This can be exploited to cause a stack-based buffer overflow when a malicious UUE/XXE/MIM archive containing an encoded file with an overly long filename is opened. 3) A boundary error exists in "unacev2.dll" when extracting an ACE archive containing a file with an overly long filename. This can be exploited to cause a stack-based buffer overflow when a malicious ACE archive is extracted using "zipgenius.exe" or "zg.exe". Vulnerability #3 is related to: SA14359 ====================================================================== 4) Solution Update to version 6.0.2.1050. ====================================================================== 5) Time Table 04/10/2005 - Initial vendor notification. 05/10/2005 - Initial vendor reply. 20/10/2005 - Vendor released fixed version. 21/10/2005 - Public disclosure. ====================================================================== 6) Credits Discovered by Tan Chew Keong, Secunia Research. ====================================================================== 7) References ZipGenius: http://forum.zipgenius.it/index.php?showtopic=684 ====================================================================== 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/2005-54/advisory/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================


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