full-disclosure - Re: Re: Second critical mremap() bug found in all Linux kernels

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Message-ID: <200402191024.07089.fulldis@it97.dyndns.org>
From: fulldis at it97.dyndns.org (i.t Consulting)
Subject: Re: Re: Second critical mremap() bug found in all Linux kernels

Am Wednesday 18 February 2004 17:01 schrieb Gregory A. Gilliss:
> There's a hole. Here's how you test/exploit the hole. The script k1dd13z
> have it now. Fix it quick. Don't wait! Full disclosure. Not necessarily
$ uname -a
Linux 2.4.22-gss #1 Sun Nov 30 09:08:04 CET 2003 i686 AMD Athlon(tm) XP 2000+ 
AuthenticAMD GNU/Linux

$ gcc -W -Wall mremap_poc_2.c && ./a.out
mmap: Cannot allocate memory
created ~65536 VMAs
now mremapping 0x3FFFC000 at 0x3FFF9000
kernel may not be vulnerable
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