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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