TITLE:
NJStar Word Processor Font Name Buffer Overflow
SECUNIA ADVISORY ID:
SA18702
VERIFY ADVISORY:
http://secunia.com/advisories/18702/
CRITICAL:
Moderately critical
IMPACT:
System access
WHERE:
>From remote
SOFTWARE:
NJStar Japanese Word Processor 5.x
http://secunia.com/product/8154/
NJStar Japanese Word Processor 4.x
http://secunia.com/product/8153/
NJStar Chinese Word Processor 5.x
http://secunia.com/product/8152/
NJStar Chinese Word Processor 4.x
http://secunia.com/product/8151/
DESCRIPTION:
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.
The vulnerability has been confirmed in the following products:
The vendor has reported that the vulnerability also affects NJStar
Chinese/Japanese Word Processor versions 4.x and 5.0x.
SOLUTION:
Update to version 5.10.
http://www.njstar.com/info/download.php
PROVIDED AND/OR DISCOVERED BY:
Tan Chew Keong, Secunia Research.
ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2006-5/
About:
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everybody keeping their systems up to date against the latest
vulnerabilities.
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