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View Full Version : XP/Vista IGMP Buffer Overflow — Explained


sl4shd0t
01-09-2008, 04:14 AM
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."Read more of this story (http://it.slashdot.org/article.pl?sid=08/01/09/0241209&from=rss) at Slashdot.
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