kdawson from the that-didn't-take-long dept.
HalvarFlake writes "With all the hoopla about the remotely exploitable, kernel-level buffer overflow discussed in today's security bulletin MS08-0001, what is the actual bug that triggers this? The bulletin doesn't give all that much information. This movie (Flash required) goes through the process of examining the 'pre-patch' version of tcpip.sys and comparing it against the 'post-patch' version of tcpip.sys. This comparison yields the actual code that causes the overflow: A mistake in the calculation of the required size in a dynamic allocation."
"Probably the best operating system in the world is the [operating system]
made for the PDP-11 by Bell Laboratories." - Ted Nelson, October 1977