A vulnerability has been reported in Cisco Intrusion Prevention System (IPS), which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error in the custom device driver for Intel-based gigabit network adapters when processing certain malformed IP packets. This can be exploited to cause a DoS via a specially crafted packet received on an Intel-based gigabit network adapter configured as a sensing interface.
Successful exploitation causes the network device to stop processing packets and become inaccessible both remotely and via the console.
The vulnerability affects 42xx appliances running IPS software version 5.1 (see the vendor advisory for a full list of vulnerable devices).
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Subject: Cisco IPS Packet Handling Denial of Service Vulnerability
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