Don's Pages and my Music

Tuesday, January 17, 2012

Linux developers fix a homemade network problem - The H Security: News and Features

16 January 2012, 19:33

Linux developers fix a homemade network problem

Linux kernels 3.0.17, 3.1.9 and 3.2.1 fix a problem with the handling of IGMP packets that was introduced with updates in Linux 2.6.36. An IGMPv3 protocol packet being processed soon after the processing of an IGMPv2 packet could lead to a system crash caused by a kernel panic.

On 6 January, Simon McVittie reported strange crashes of his Linux notebook in the Debian bug database. Debian developer Ben Hutchings found that the problem was caused by a division by 0 that can occur with IGMP packets that have a Maximum Response Time of 0. As a result, Linux systems running a kernel version from 2.6.36 or later, up until the patched versions, can quite easily be crashed remotely using certain IGMP packets if a program has registered to receive multicast packets from the network. Typical examples for such programs include the avahi mDNS server or media players, such as VLC, that support RTP.

Read More...
http://www.h-online.com/security/news/item/Linux-developers-fix-a-homemade-network-problem-1414033.html

Well, I was just thinking about trying out VLC Media Streaming again on my Home Network. Guess I'll wait until these Updates come out now...

Don


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