23354 : NJStar Word Processor Font Name Processing Overflow
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
5	328	over 5 years ago	over 3 years ago	0 times	90%

Timeline

Discovery Date	Disclosure Date
2006-02-03	2006-02-20

Description

A local overflow exists in NJStar Word Processor. The product fails to perform boundary checking when reading font names from NJStar document files (".njx"), resulting in a stack-based overflow. With a specially crafted request, an attacker can cause arbitrary code execution resulting in a loss of integrity.

Classification

Location: Local Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Unknown
Disclosure: OSVDB Verified

Technical

The problem was specifically found in the Chinese and Japanese editions of version 5.01.41108; the vendor states that the Chinese and Japenese versions of 4.x and 5.0x are also vulnerable.

Solution

Upgrade to version 5.10 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

NJStar Software Corporation	Word Processor	4.x
		5.0x

References

Security Tracker: 1015649
Bugtraq ID: 16737
Secunia Advisory ID: 18702
CVE ID: 2006-0807 (see also: NVD)
ISS X-Force ID: 24773
VUPEN Advisory: ADV-2006-0670
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2006-02/0341.html
Other Advisory URL: http://secunia.com/secunia_research/2006-5/advisory/
Vendor URL: http://www.njstar.com/

Credit

Tan Chew Keong - vulnsecunia.com - Secunia Research

CVSSv2 Score

CVSSv2 Base Score = 5.1
Source: nvd.nist.gov | Generated: 2006-02-22 | Disagree?

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

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