Re: CVE request: Xorg input device format string flaw

[Kurt Seifried <kseifried () redhat com>]

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On 04/18/2012 02:37 PM, Kees Cook wrote:
> On Wed, Apr 18, 2012 at 1:23 PM, Kurt Seifried
> <kseifried () redhat com> wrote:
> > On 04/18/2012 01:28 PM, Kees Cook wrote:
> > > Hello,
> > >
> > > Adding an input device with a malicious name can trigger a
> > > format string flaw in Xorg's logging subsystem. For builds of
> > > Xorg lacking -D_FORTIFY_SOURCE=2 (or 32-bit systems lacking the
> > > fix to fortify[1]) this can lead to arbitrary code execution as
> > > the Xorg user, usually root. When built with fortify, this is a
> > > denial of service, since Xorg will abort.
> > >
> > > Proposed solution patch series can be found here: 1/4 
> > > http://patchwork.freedesktop.org/patch/10000/ 2/4 
> > > http://patchwork.freedesktop.org/patch/9998/ 3/4 
> > > http://patchwork.freedesktop.org/patch/9999/ 4/4 
> > > http://patchwork.freedesktop.org/patch/10001/
> > >
> > > -Kees
> > >
> > > [1] 
> > > http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=7c1f4834d398163d1ac8101e35e9c36fc3176e6e
> >
> >
> > >
So
> > >
> > are you asking for just the device name issue covered in
> >
> > http://patchwork.freedesktop.org/patch/10001/

Please use CVE-2012-2118 for this issue (Xorg device name logging
format string).

> Yeah, but I wanted to point to the entire patch series, since that 
> fix, I think, depends on pieces from the others.
>
> -Kees

Ok, it's just that some of them have other somewhat security sounding
issues (I haven't looked in depth though, was hoping you had).


- -- 
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993

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