17305 : Microsoft Windows HTML Help (CHM) File Overflow
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Views This Week
3

Views All Time
263

Info

Last Modified
28 days ago

Percent Complete
100%

Disclosure
Jun 14, 2005

Discovery
Mar 16, 2005

Dates

Exploit
Unknown

Solution
Unknown

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

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
Watch-list
Windows
Watch-list
 98
98 SE
ME
2000
XP
2003

References

Tools & Filters
18482

Snort

 3820 3821 4183 7441

Credit
  • eEye Digital Security - infoeeye.com - eEye Digital Security

CVSSv2 Score

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

Access_vector_2 Access_complexity_2 Authentication_2 Confidentiality_impact_2 Integrity_impact_2 Availability_impact_2

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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