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secunia-NJStar.txt

secunia-NJStar.txt
Posted Feb 20, 2006
Site secunia.com

Secunia Research has discovered a vulnerability in NJStar Word Processor, which can be exploited by malicious people to compromise a user's system.

tags | advisory
SHA-256 | f61370fbbebc0b233634c48add43e1717d790ddf432d0c18c9d602041c886b71

secunia-NJStar.txt

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====================================================================== 

Secunia Research 20/02/2006

- NJStar Word Processor Font Name 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

* NJStar Chinese/Japanese Word Processor 5.01.41108.
* NJStar Chinese/Japanese Word Processor 4.x and 5.0x.

======================================================================
2) Severity

Rating: Moderately Critical
Impact: System access
Where: Remote

======================================================================
3) Description of Vulnerability

Secunia Research has discovered a vulnerability in NJStar Word
Processor, which can be exploited by malicious people to compromise a
user's system.

The vulnerability is caused due to a boundary error within the
handling of font names read from a NJStar document file (".njx").
This can be exploited to cause a stack-based buffer overflow.

Successful exploitation allows arbitrary code execution when a
malicious ".njx" file is opened.

======================================================================
4) Solution

Update to version 5.10.

======================================================================
5) Time Table

03/02/2006 - Initial vendor notification.
04/02/2006 - Initial vendor reply.
18/02/2006 - Vendor released fixed versions.
20/02/2006 - 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/2006-5/advisory/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================



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