May 10, 2011
Microsoft PowerPoint is prone to a remote code-execution vulnerability. An attacker can exploit this issue by enticing a victim to open a malicious PowerPoint file. Successful exploits will result in the execution of arbitrary code with the privileges of the user running the application. Failed attempts will cause a denial-of-service condition.
- Microsoft Office 2004 for Mac
- Microsoft Office 2008 for Mac
- Microsoft Office Compatibility Pack 2007
- Microsoft Office Compatibility Pack 2007 SP1
- Microsoft Office Compatibility Pack 2007 SP2
- Microsoft Open XML File Format Converter for Mac
- Microsoft PowerPoint 2002 SP1
- Microsoft PowerPoint 2002
- Microsoft PowerPoint 2002 SP2
- Microsoft PowerPoint 2002 SP3
- Microsoft PowerPoint 2003
- Microsoft PowerPoint 2003 SP1
- Microsoft PowerPoint 2003 SP2
- Microsoft PowerPoint 2003 SP3
- Microsoft PowerPoint 2007
- Microsoft PowerPoint 2007 SP1
- Microsoft PowerPoint 2007 SP2
Run all software as a nonprivileged user with minimal access rights.
To mitigate the impact of a successful exploit, run the affected application as a user with minimal access rights.
Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of suspicious or anomalous activity. This may help detect malicious actions that an attacker may take after successfully exploiting vulnerabilities in applications. Review all applicable logs regularly.
Do not accept or execute files from untrusted or unknown sources.
Never accept files from untrusted or unknown sources, because they may be malicious in nature. Avoid opening email attachments from unknown or questionable sources.
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 exploit attempts of memory-corruption vulnerabilities.
The vendor has released an advisory and updates. Please see the references for details.
Will Dormann of CERT/CC
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