Two vulnerabilities have been reported in Microsoft Windows, which can be exploited by malicious people to cause a DoS (Denial of Service).
1) An error in the TCP/IP stack (Tcpip.sys) when parsing received ICMP messages can be exploited to cause a system to stop responding or restart via a sequence of specially crafted ICMP messages.
2) An error in the TCP/IP stack (Tcpip.sys) when parsing URLs can be exploited to cause a system to stop responding or restart via a specially crafted URL request to a system serving web content with URL-based QoS (Quality of Service) enabled (disabled by default).
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