oss-security - Re: http://www.securityfocus.com/bid/33672/info kernel issue

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Date: Thu, 12 Feb 2009 20:05:27 +0000 (GMT)
From: Mark J Cox <mjc@...hat.com>
To: OSS Security List <oss-security@...ts.openwall.com>
Subject: Re: http://www.securityfocus.com/bid/33672/info kernel
 issue

> http://www.securityfocus.com/bid/33672/ seems to be this commit:
> http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.28.y.git;a=commit;h=8255fc826e58c0a59711029e01db9fcdc06ba211
> Not sure if its exploitable though.

BTW that BID list of affected kernels isn't correct; the multibyte stuff 
wasn't in <=2.6.18 at least.

I didn't check exactly where since it doesn't affect RHEL and didn't look 
into the issue any further -- but on first glance it seemed like you'd 
have to be a console user and display/select some carefully chosen 
characters in order to do the overflow; so it's probably a 'local attacker 
at keyboard' flaw?

Cheers, Mark

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