oss-sec mailing list archives

security problem in ESP fragment handling?

From: Marcus Meissner <meissner () suse de>
Date: Wed, 30 Apr 2008 15:43:53 +0200

Hi folks,

We came across this commit and think it is security relevant...

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=920fc941a9617f95ccb283037fe6f8a38d95bb69

This will at least hang the networking of the system if triggered.


According to Karsten Keil just ESP fragment packets need to be accepted
by the kernel to trigger the condition.
We think this might be true for all 2.6 kernels (ever since esp.c got added).

Ciao, Marcus

Current thread:

security problem in ESP fragment handling? Marcus Meissner (Apr 30)
- Re: security problem in ESP fragment handling? Steven M. Christey (Apr 30)
  - Re: security problem in ESP fragment handling? Marcus Meissner (Apr 30)
- Re: security problem in ESP fragment handling? Mark J Cox (Apr 30)
  - Re: security problem in ESP fragment handling? Marcus Meissner (Apr 30)