A vulnerability in the Remote Packet Capture (RPCAP) dissector component of Wireshark could allow an unauthenticated, remote malicious user to cause a denial of service (DoS) condition on a targeted system. The vulnerability is due to insufficient validation of user-supplied input that is processed by the affected software. An attacker could exploit this vulnerability by injecting a malformed packet into a network to be processed by the affected software, or by convincing a user to open a malicious packet trace file. A successful exploit could cause the software to crash, resulting in a DoS condition. Wireshark has confirmed the vulnerability and released software updates.