internetnews.com: DoS Hole Found in Linux Kernel

“Security experts Thursday warned of a vulnerability in the
Linux Kernel 2.4 branch, which can be exploited to cause
denial-of-service attacks.

“The hole in the popular open-source operating system was
detected in the way the Linux Kernel handles caching of routing
information.

“‘By flooding a Linux system with packets with spoofed source
addresses, the handling of the cache will consume large amounts of
CPU power. This could potentially bring a Linux system offline with
a rate of only 400 packets per second by using carefully chosen
source addresses that causes hash collisions in the table,’
according to an security advisory from U.K.-based Secunia…”

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