TippingPoint Zero Day Initiative
 

Microsoft Office PowerPoint OutlineTextRefAtom Parsing Memory Corruption Vulnerability

ZDI-09-019: May 12th, 2009

CVE ID

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 6944, 6965. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Office PowerPoint. Exploitation requires that the attacker coerce the target into opening a malicious .PPT file.

The specific flaw exists in the parsing of the OutlineTextRefAtom (3998). By specifying an invalid "index" value during parsing memory corruption occurs. Proper exploitation can lead to remote code execution under the credentials of the currently logged in user.

Vendor Response

Microsoft has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2008-04-07 - Vulnerability reported to vendor
    2009-05-12 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Marsu