ISS Coverage |
| Product |
Content Version |
Network Sensor 7.0
Proventia A
Proventia IPS (G/GX)
Server Sensor 7.0
Proventia Multifunction Appliance
Proventia Server (Linux) |
27.070 |
Proventia Server (Windows)
Proventia Desktop |
x.x.x.2080 |
| BlackICE PC Protection 3.6 |
CQN |
|
| Propagation Techniques |
ISS Protection |
Available |
| remote exploit |
Media_File_BO |
Aug 16, 2007 |
|
|
|
Detailed Description |
| Business Impact: |
Microsoft Windows Media Player is an application that is installed with most modern Microsoft operating systems, such as Windows XP, Vista, 2000, and Server 2003. Although this vulnerability may require some user interaction, a successful exploit would result in remote code execution and possibly complete compromise of the system. The widespread nature of Windows Media Player coupled with the impact of the vulnerability means this issue should be considered highly critical. |
| CVSS for XFIDs 38827, 38828, 38829, 38830: |
Base Score: |
10.0 |
| |
Access Vector: |
Network |
| Access Complexity: |
Low |
| Authentication: |
None |
| Confidentiality Impact: |
Complete |
| Integrity Impact: |
Complete |
| Availability Impact: |
Complete |
| Impact Bias: |
None |
| Adjusted Temporal Score: |
7.4 |
| |
Exploitability: |
Unproven |
| Remediation Level: |
Official-Fix |
| Report Confidence: |
Confirmed |
| Affected Products: |
For a full list of affected versions, see references below. |
| Technical Description: |
.ASF is a file format that is processed by Windows Media Player. This file format contains three mandatory header objects and, sometimes, Stream Property entries. The four vulnerabilities in this advisory are related to the Stream Properties entries.
- Audio_conceal_none entry. This entry has a corresponding entry length that is an arbitrary short. It is possible to craft a length value which, after some addition and truncation, will result in a small buffer being allocated. If a large copy occurs, it will overflow the heap and possibly allow remote code execution. (XFID 38828)
- Degradable JPEG Media entry. This entry has a corresponding entry length that is an arbitrary short. It is possible to craft a length value which, after some addition and truncation, will result in a small buffer being allocated. If a large copy occurs, it will overflow the heap and possibly allow remote code execution. (XFID 38827)
- Error correction entry. This entry has a corresponding entry length that is an arbitrary short. It is possible to craft a length value which, after some addition and truncation, will result in a small buffer being allocated. If a large copy occurs, it will overflow the heap and possibly allow remote code execution. (XFID 38829)
-
The Stream Property entries may also contain both a type-specific data length and an error correction data length. Arithmetic is performed on these integers in order to arrive at the size of a chunk of memory to allocate. Due to a corner case in the arithmetic, if the two sizes are large enough, then a memory overflow may occur possibly leading to remote code execution (XFID 38830). |
| Remediation: |
Patches are available for this issue. See References for details. |
|
References |
|
|
Revision History |
|
|
|
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. 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 IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
About IBM Security Systems
IBM Security Systems include an extensive portfolio of hardware, software solutions, professional and managed services offerings covering the spectrum of IT and business security risks: people and identity, data and information, application and process, network, server and endpoint and physical infrastructure, empowering clients to innovate and operate their businesses on the most secure infrastructure platforms. Through world-class solutions that address risk across the enterprise, IBM helps organizations build a strong security posture that helps reduce costs, improve service, and manage risk. IBM X-Force(R) Research and Development is one of the most renowned commercial security research and development groups in the world. For more information on how to address today's biggest risks, please visit us at ibm.com/security.
|
