The host is installed with Wireshark 1.4.x before 1.4.14 or 1.6.x before 1.6.9 or 1.8.x before 1.8.1 and is prone to denial of service vulnerability. A flaw is present in the application, which fails to handle the PPP dissector. Successful exploitation allows remote attackers to cause a denial of service (invalid pointer dereference and application crash).