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Hardcore Disassembler / Reverse Engineer Wanted!

Want to work with IDA and BinDiff?
Want to write PoC's and Exploits?

Your nationality is not important.
We will get you a work permit, find an apartment, and offer a
relocation compensation package.

http://secunia.com/hardcore_disassembler_and_reverse_engineer/

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TITLE:
Linux Kernel Ext3 Invalid Inode Number Denial of Service

SECUNIA ADVISORY ID:
SA21369

VERIFY ADVISORY:
http://secunia.com/advisories/21369/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From local network

OPERATING SYSTEM:
Linux Kernel 2.6.x
http://secunia.com/product/2719/

DESCRIPTION:
James McKenzie has reported a vulnerability in Linux Kernel, which
can be exploited by malicious users to cause a DoS (Denial of
Service).

The vulnerability is caused due to an error in ext3 when handling an
invalid inode number. This can be exploited by sending a specially
crafted NFS request with a V2 procedure (e.g. V2_LOOKUP) that
specifies an invalid inode number.

Successful exploitation causes the exported directory to be remounted
read-only.

The vulnerability has been reported in versions 2.6.14.4, 2.6.17.6,
and 2.6.17.7. Other versions may also be affected.

SOLUTION:
Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
James McKenzie

CHANGELOG:
http://lkml.org/lkml/2006/7/17/41

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About:
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