Zero Day Initiative Advisory 11-341 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Cisco WebEx 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 atdl2006.dll. The vulnerability is caused by lack of validation when parsing WRF files. A specially crafted WRF file will cause the application to incorrectly push a size value to a memcpy, allowing for corruption of heap memory. An attacker can leverage this vulnerability to execute arbitrary code on the target system under the context of the current user.
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Cisco Security Advisory - Multiple buffer overflow vulnerabilities exist in the Cisco WebEx Recording Format (WRF) player. In some cases, exploitation of the vulnerabilities could allow a remote attacker to execute arbitrary code on the system with the privileges of a targeted user. Cisco has released free software updates that address these vulnerabilities.
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