RealNetworks RealPlayer ATRAC Sample Decoding Remote Code Execution VulnerabilityZDI-12-195: December 21st, 2012
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12482. 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 when the application attempts to decode an audio sample that is encoded with the ATRAC codec. While parsing sample data, the application will explicitly trust 2-bits as a loop counter which can be used to write outside the bounds of the target buffer. This 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:
2011-10-28 - Vulnerability reported to vendor
2012-12-21 - Coordinated public release of advisory
CreditThis vulnerability was discovered by: