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Date: Tue, 9 Aug 2011 09:18:07 -0400
From: Steve Grubb <sgrubb@...hat.com>
To: oss-security@...ts.openwall.com
Cc: dann frazier <dannf@...ian.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Christian Ohm <chr.ohm@....net>, Paul Mackerras <paulus@...ba.org>,
        Ingo Molnar <mingo@...e.hu>,
        Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
        632923@...s.debian.org
Subject: Re: CVE request: perf: may parse user-controlled config file

On Sunday, August 07, 2011 01:34:38 PM dann frazier wrote:
> This was reported by Christian Ohm at:
>   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=632923
> 
> The perf command, provided as part of the Linux kernel source, looks
> for and honors configuration settings in ./config. A local user could
> obtain elevated privileges by convincing a superuser to run the perf
> command from a directory the user controls.

And in recent kernels has an executable stack:
https://bugzilla.redhat.com/show_bug.cgi?id=704296

-Steve

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