Re: CVE-2014-6271: remote code execution through bash

[Huzaifa Sidhpurwala <huzaifas () redhat com>]

On 09/25/2014 07:07 AM, Chet Ramey wrote:
> On 9/24/14, 9:30 PM, Solar Designer wrote:
> > On Wed, Sep 24, 2014 at 06:26:53PM -0700, Anthony Liguori wrote:
> > > On Wed, Sep 24, 2014 at 6:23 PM, Chet Ramey <chet.ramey () case edu> wrote:
> > > > On 9/24/14, 5:32 PM, Solar Designer wrote:
> > > > > On Wed, Sep 24, 2014 at 11:27:09PM +0200, Hanno B??ck wrote:
> > > > > > Tavis Ormandy just tweetet this:
> > > > > > https://twitter.com/taviso/status/514887394294652929
> > > > > >
> > > > > > The bash patch seems incomplete to me, function parsing is still
> > > > > > brittle. e.g. $ env X='() { (a)=>\' sh -c "echo date"; cat echo
> > > > >
> > > > > Thanks for bringing this to oss-security.  I've added CC to Chet and
> > > > > Tavis on this "reply".
> > > >
> > > > I have a fix for this.
> > >
> > > Can you provide a pointer to the patch?  I put together a patch that
> > > changed the report_error() to fatal_error() as I wasn't able to see
> > > how to reset the parser state.  Was just about to send it out...
> >
> > I think Chet is not on oss-security - we should be CC'ing him where
> > appropriate.  (I've added the CC on this reply.)
>
> I haven't sent the patch out.  It's not related to this problem -- this
> is just the easiest way to get to that code path -- and I still have
> some investigating to do.

Please note, We have assigned CVE-2014-3659 to this issue.


-- 
Huzaifa Sidhpurwala / Red Hat Product Security Team