Adobe Shockwave Lnam Chunk Parsing Remote Code Execution VulnerabilityTPTI-11-11: June 15th, 2011
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 11347. For further product information on the TippingPoint IPS:
Vulnerability DetailsThis 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 ResponseAdobe has issued an update to correct this vulnerability. More details can be found at:
2011-04-25 - Vulnerability reported to vendor
2011-06-15 - Coordinated public release of advisory