17305 : Microsoft Windows HTML Help (CHM) File Overflow
Printer | http://osvdb.org/17305 | Email This | Edit Vulnerability

Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
6	586	over 6 years ago	about 1 year ago	4 times	100%

Timeline

Discovery Date	Vendor Informed Date	Disclosure Date	Vendor Solution Date
2005-03-16	2005-03-16	2005-06-14	2005-06-14

Time to Patch
90 days

Keywords

EEYEB-20050316

Description

A remote overflow exists in Microsoft Windows via the "ms-its" protocol specification. Microsoft Windows fails to check the size field resulting in a heap overflow. Specifying a very high value will cause a buffer overflow. With a specially crafted request, an attacker can cause Internet Explorer to open a malicious .CHM file and cause an excessive memory copy that overwrites portions of memory resulting in a loss of availability and possibly remote code execution.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Confidentiality, Loss of Integrity
Exploit: Exploit Rumored
Disclosure: OSVDB Verified, Vendor Verified

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, Microsoft has released a patch (MS05-026) to address this vulnerability.

Products

Microsoft Corporation	Windows	98
		98 SE
		ME
		2000
		XP
		2003

References

Security Tracker: 1014195
Bugtraq ID: 13953
SCIP VulDB ID: 1567
Secunia Advisory ID: 15683
CVE ID: 2005-1208 (see also: NVD)
Microsoft Knowledge Base Article: 896358
Mail List Post: http://archives.neohapsis.com/archives/vulnwatch/2005-q2/0062.html
http://archives.neohapsis.com/archives/vulnwatch/2005-q2/0063.html
Other Advisory URL: http://research.eeye.com/html/advisories/published/AD20050614.html
http://www.eeye.com/html/research/advisories/AD20050614.html [ Link is 404 ]
Microsoft Security Bulletin: MS05-026

Tools & Filters

	18482
Snort	3820 3821 4183 7441

Credit

Yuji Ukai - eEye Digital Security

CVSSv2 Score

CVSSv2 Base Score = 10.0
Source: nvd.nist.gov | Generated: 2005-06-16 | 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.

None found at this time

Comments

Add Comment Hide Add Comment

No Comments.

The database information may change without any notice. Use of the information constitutes acceptance for use in an AS IS condition, and there are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the copyright holder or distributor (OSVDB or OSF) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.