July 14, 2009
Microsoft DirectX is prone to a remote code-execution vulnerability that resides in the DirectShow component. Successful exploits allow remote attackers to execute arbitrary code in the context of the user running the application that uses DirectX. Failed exploit attempts will result in a denial-of-service condition.
- Microsoft DirectX 7.0
- Microsoft DirectX 8.1
- Microsoft DirectX 8.1 a
- Microsoft DirectX 8.1 b
- Microsoft DirectX 9.0
- Microsoft DirectX 9.0 a
- Microsoft DirectX 9.0 c
- Microsoft DirectX 9.0b
- Nortel Networks CallPilot 1005r
- Nortel Networks CallPilot 201i
- Nortel Networks CallPilot 202i
- Nortel Networks CallPilot 600r
- Nortel Networks CallPilot 703t
- Nortel Networks Contact Center - Agent Desktop Display
- Nortel Networks Contact Center - CCT 5
- Nortel Networks Contact Center - CCT
- Nortel Networks Contact Center - Contact Recording
- Nortel Networks Contact Center - Quality Monitoring
- Nortel Networks Contact Center - Symposium Agent
- Nortel Networks Contact Center - TAPI Desktop
- Nortel Networks Contact Center - TAPI Server
- Nortel Networks Contact Center
- Nortel Networks Contact Center Administration
- Nortel Networks Contact Center Administration CCMA 6.0
- Nortel Networks Contact Center Express
- Nortel Networks Contact Center Manager
- Nortel Networks Contact Center Manager Server
- Nortel Networks Contact Center Multimedia
- Nortel Networks Contact Center NCC
- Nortel Networks Contact Center Web Client
- Nortel Networks Self-Service - CCSS7
- Nortel Networks Self-Service - Peri Application Rel 3.0
- Nortel Networks Self-Service
- Nortel Networks Self-Service CCXML
- Nortel Networks Self-Service MPS 100
- Nortel Networks Self-Service MPS 1000
- Nortel Networks Self-Service MPS 500
- Nortel Networks Self-Service Media Processing Server
- Nortel Networks Self-Service Peri Application
- Nortel Networks Self-Service Peri Workstation
- Nortel Networks Self-Service Speech Server
- Nortel Networks Self-Service VoiceXML
- Nortel Networks Self-Service WVADS
- Nortel Networks Symposium TAPI Service Provider
Run all software as a nonprivileged user with minimal access rights.
To limit the potential damage that a successful exploit may achieve, run all nonadministrative software as a regular user with the least amount of privileges required to successfully operate.
Do not accept or execute files from untrusted or unknown sources.
To reduce the likelihood of successful exploits, never handle files that originate from unfamiliar or untrusted sources.
Do not follow links provided by unknown or untrusted sources.
Web users should be cautious about following links to sites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.
Implement multiple redundant layers of security.
Since this issue may be leveraged to execute code, we recommend memory-protection schemes, such as nonexecutable stack/heap configurations and randomly mapped memory segments. This tactic may complicate exploits of memory-corruption vulnerabilities.
The vendor has released an update. Please see the references for details.
Yamata Li of Palo Alto Networks
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