Date Discovered June 10, 2008
Description Microsoft DirectX is prone to a stack-based buffer-overflow vulnerability because it fails to perform adequate boundary checks on user-supplied data. The vulnerability occurs when handling malformed SAMI files.
Successfully exploiting this issue allows 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.
NOTE: Supported editions of Windows Server 2008 are not affected if installed using the Server Core installation option.
- Avaya Messaging Application Server
- Avaya Messaging Application Server MM 1.1
- Avaya Messaging Application Server MM 2.0
- Avaya Messaging Application Server MM 3.0
- Avaya Messaging Application Server MM 3.1
- HP Storage Management Appliance 2.1
- HP Storage Management Appliance I
- HP Storage Management Appliance II
- HP Storage Management Appliance III
- Microsoft DirectX 7.0
- Microsoft DirectX 7.0 a
- Microsoft DirectX 8.1
- Nortel Networks CallPilot 1002rp
- Nortel Networks CallPilot 200i
- Nortel Networks CallPilot 201i
- Nortel Networks CallPilot 702t
- Nortel Networks CallPilot 703t
- Nortel Networks Centrex IP Client Manager 10.0
- Nortel Networks Centrex IP Client Manager 11.0
- Nortel Networks Centrex IP Client Manager 9.0
- Nortel Networks Contact Center
- Nortel Networks Contact Center - Symposium Agent
- Nortel Networks Contact Center - TAPI Server
- Nortel Networks Contact Center Express
- Nortel Networks Contact Center Manager Server
- Nortel Networks Contact Center NCC
- Nortel Networks ENSM - Enterprise NMS 10.4
- Nortel Networks ENSM - Enterprise NMS 10.5
- Nortel Networks Media Processing Server
- Nortel Networks Multimedia Comm MCS5100
- Nortel Networks Self Service VoiceXML
- Nortel Networks Self-Service - CCSS7
- 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 Peri Application
- Nortel Networks Self-Service Peri Workstation
- Nortel Networks Self-Service Speech Server
- Nortel Networks Self-Service WVADS
Deploy network intrusion detection systems to monitor network traffic for malicious activity. Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.
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.
Microsoft has released an advisory along with fixes. Please see the references for details.
Credits An Anonymous Researcher working with Tipping Point and the Zero Day Initiative
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