TippingPoint Digital Vaccine Laboratories
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Adobe Shockwave Lnam Chunk Parsing Remote Code Execution Vulnerability

TPTI-11-11: June 15th, 2011

CVE ID

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 11347. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of the Adobe Shockwave Player. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the Lnam chunk inside Adobe's RIFF-based Director file format. The code within the IML32.dll does not properly validate certain fields before using them to calculate sizes used for later memory copy operations. This can lead to memory corruption which can be leveraged to execute arbitrary code under the context of the user running the browser.

Vendor Response

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

Disclosure Timeline

    2011-04-25 - Vulnerability reported to vendor
    2011-06-15 - Coordinated public release of advisory

Credit

This vulnerability was discovered by: