RealNetworks RealPlayer Cook Codec Channel Parsing Remote Code Execution VulnerabilityZDI-12-046: March 20th, 2012
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12128. For further product information on the TippingPoint IPS:
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of RealNetworks Real 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 how the application parses information out of the codec-specific data located within a media description header. When making space for audio-sample data, the application will allocate a static size. When decoding sample data into this buffer, an overflow will occur which can lead to memory corruption that can lead to code execution under the context of the application.
Vendor ResponseRealNetworks has issued an update to correct this vulnerability. More details can be found at:
2011-08-12 - Vulnerability reported to vendor
2012-03-20 - Coordinated public release of advisory
CreditThis vulnerability was discovered by: