Secunia Research
05/10/05, 22:05
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Secunia Research 05/10/2005
- ALZip Multiple Archive Handling Buffer Overflow -
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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
ALZip v6.12 (Korean)
ALZip v6.1 (International)
ALZip v5.52 (English)
Prior 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 a vulnerability in ALZip, which can
be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to multiple boundary errors when
reading the filename of a compressed file from ALZ, ARJ, ZIP, UUE or
XXE archives. This can be exploited to cause a stack-based buffer
overflow (ALZ), or a heap-based buffer overflow (ARJ / ZIP /
UUE / XXE).
Successful exploitation allows execution of arbitrary code when a
malicious ALZ / ARJ archive is opened, or when a ZIP / UUE / XXE
archive is extracted.
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4) Solution
Update to version 6.13 (Korean and International)
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5) Time Table
19/09/2005 - Initial vendor notification.
20/09/2005 - Initial vendor reply.
28/09/2005 - Notified by vendor that fixed version has been
released.
05/10/2005 - Public disclosure.
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6) Credits
Discovered by Tan Chew Keong, Secunia Research.
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7) References
No references available.
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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/2005-49/advisory/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
================================================== ====================
Secunia Research 05/10/2005
- ALZip 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
ALZip v6.12 (Korean)
ALZip v6.1 (International)
ALZip v5.52 (English)
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 ALZip, which can
be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to multiple boundary errors when
reading the filename of a compressed file from ALZ, ARJ, ZIP, UUE or
XXE archives. This can be exploited to cause a stack-based buffer
overflow (ALZ), or a heap-based buffer overflow (ARJ / ZIP /
UUE / XXE).
Successful exploitation allows execution of arbitrary code when a
malicious ALZ / ARJ archive is opened, or when a ZIP / UUE / XXE
archive is extracted.
================================================== ====================
4) Solution
Update to version 6.13 (Korean and International)
================================================== ====================
5) Time Table
19/09/2005 - Initial vendor notification.
20/09/2005 - Initial vendor reply.
28/09/2005 - Notified by vendor that fixed version has been
released.
05/10/2005 - Public disclosure.
================================================== ====================
6) Credits
Discovered by Tan Chew Keong, Secunia Research.
================================================== ====================
7) References
No references available.
================================================== ====================
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/2005-49/advisory/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
================================================== ====================