A vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of RealNetworks RealPlayer. 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 RealPlayer's handling of Internet Video Recording (.ivr) files. While parsing the MLTI chunk the process trusts the field responsible for denoting the size of an embedded MDPR chunk. By modifying this value in an IVR file an attacker can force a misallocation on the heap. The process can then be made to write past the bounds of the buffer, corrupting memory. This can be leveraged to execute arbitrary code under the context of the user invoking RealPlayer.
ef22d184b5a4a171517add373ae6dc8fd3d072df971cf7a90421dcccf5664ddcA vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of RealNetworks RealPlayer. 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 RealPlayer's handling of Internet Video Recording (.ivr) files. While parsing the MLTI chunk the process trusts the field responsible for denoting the number of streams within the chunk. By modifying this value in an IVR file, an attacker can force a processing loop to overrun and corrupt heap memory. This can be abused to execute arbitrary code under the context of the user invoking RealPlayer.
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