Attention: New Cisco Security Advisory RSS Feed Locations

Effective October 18, 2011, Cisco has replaced the existing RSS feeds for Cisco Security Advisories. The new RSS feeds for Cisco Security Advisories are available at and The existing RSS feeds will continue to function until November 19, 2011. They will not receive updates after this date.

Denial of Service Vulnerability in Cisco Video Surveillance IP Cameras

A denial of service (DoS) vulnerability exists in the Cisco Video Surveillance IP Cameras 2421, 2500 series and 2600 series of devices. An unauthenticated, remote attacker could exploit this vulnerability by sending crafted RTSP TCP packets to an affected device. Successful exploitation prevents cameras from sending video streams, subsequently causing a reboot. The camera reboot is done automatically and does not require action from an operator.


The verify_exists functionality in the URLField implementation in Django before 1.2.7 and 1.3.x before 1.3.1 relies on Python libraries that attempt access to an arbitrary URL with no timeout, which allows remote attackers to cause a denial of service (resource consumption) via a URL associated with (1) a slow response, (2) a completed TCP connection with no application data sent, or (3) a large amount of application data, a related issue to CVE-2011-1521. (CVSS:5.0) (Last Update:2011-10-19)