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Message-ID: <20110811064811.GG32249@dannf.org>
Date: Thu, 11 Aug 2011 00:48:11 -0600
From: dann frazier <dannf@...nf.org>
To: Steve Grubb <sgrubb@...hat.com>
Cc: oss-security@...ts.openwall.com,
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 Tue, Aug 09, 2011 at 09:18:07AM -0400, Steve Grubb wrote:
> 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
fyi, that bug appears to be locked
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