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Secunia Research: ZipTV ARJ Archive Handling and unacev2.dll Buffer Overflows |
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Secunia Research 07/09/2006
- ZipTV ARJ Archive Handling and unacev2.dll Buffer Overflows -
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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
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1) Affected Software
* ZipTV for Delphi 7 version 2006.1.26.
* ZipTV for C++ Builder version 2006-1.16.
Other versions may also be affected.
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2) Severity
Rating: Moderately Critical
Impact: System Access
Where: Remote
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3) Description of Vulnerability
Secunia Research has discovered two vulnerabilities in ZipTV, which
can be exploited by malicious people to compromise an application
using the library.
1) A boundary error exists within the TZipTV component when listing
the files in an ARJ archive. This can be exploited to cause a
heap-based buffer overflow via a specially-crafted ARJ archive with
an overly large ARJ header block.
Successful exploitation allows execution of arbitrary code when a
malicious ARJ archive is listed.
2) A boundary error exists in UNACEV2.DLL (ztvunacev2.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 user extracts a specially crafted ACE archive.
Successful exploitation allows execution of arbitrary code when a
malicious ACE archive is extracted.
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4) Solution
Do not open untrusted archives.
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5) Time Table
25/05/2006 - Initial vendor notification.
01/06/2006 - Second vendor notification.
01/06/2006 - Initial vendor reply.
08/06/2006 - Second vendor reply.
21/08/2006 - Reminder sent to vendor.
07/09/2006 - Public disclosure.
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6) Credits
Discovered by Tan Chew Keong, Secunia Research.
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7) References
The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2005-2856 and CVE-2006-2482 for the vulnerabilities.
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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/
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9) Verification
Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2006-50/advisory/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
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