Two CVEs in qtbase-opensource-src

[Lisandro Damián Nicanor Pérez Meyer]

Hi!

On Thu, 30 Jan 2020 at 13:38, Salvatore Bonaccorso <carnil at debian.org> wrote:
>
> Hi,
>
> On Thu, Jan 30, 2020 at 01:21:18PM -0300, Lisandro Damián Nicanor Pérez Meyer wrote:
> > Hi again...
> >
> > On Thu, 30 Jan 2020 at 12:43, Lisandro Damián Nicanor Pérez Meyer
> > <perezmeyer at gmail.com> wrote:
> > >
> > > Hit Enter too fast...
> > >
> > > On Thu, 30 Jan 2020 at 12:39, Lisandro Damián Nicanor Pérez Meyer
> > > <perezmeyer at gmail.com> wrote:
> > > [snip]
> > > > I'm attaching the stretch debdiff.
> > >
> > > In this case only one CVE applies. I wanted to prepare a MR on the
> > > security tracker for this too, but it has been forking the repo for
> > > more than 5' already...
> > >
> > > So I'm adding more info here:
> > >
> > > - CVE-2020-0569.diff applies to all Qt 5 versions (except gles
> > > variants) *and* also qt4-x11.
> > > - CVE-2020-0570.diff only applies to buster, testing and sid Qt5's versions.
> >
> > I'm afraid I was confused here, I think due to upstream's affected ranges.
> >
> > - CVE-2020-0569.diff applies to all Qt 5 versions (except gles variants)
> > - CVE-2020-0570.diff, according to upstream, is said to affect only
> > 5.12 onwards. But I've found the code also applies to 5.7 and even to
> > qt4. I have just asked upstream to re check this.
>
> I have for now reverted the last change 5bd1b4fe297e ("Add
> CVE-2020-0569/qt4-x11 as well"). So for now we are tracking those as:
>
> CVE-2020-0570
>         RESERVED
>         - qtbase-opensource-src <unfixed>
>         [stretch] - qtbase-opensource-src <not-affected> (Only affects 5.12.0 through 5.14.0)
>         NOTE: https://bugreports.qt.io/browse/QTBUG-81272
>         NOTE: Patch: https://code.qt.io/cgit/qt/qtbase.git/commit/?id=e6f1fde24f77f63fb16b2df239f82a89d2bf05dd
> CVE-2020-0569
>         RESERVED
>         - qtbase-opensource-src <unfixed>
>         NOTE: Patch for 5.6.0 through 5.13.2: https://code.qt.io/cgit/qt/qtbase.git/commit/?id=bf131e8d2181b3404f5293546ed390999f760404
>         NOTE: Patch for 5.0.0 through 5.5.1: https://code.qt.io/cgit/qt/qtbase.git/commit/?id=5c4234ed958130d655df8197129806f687d4df0d
>         TODO: check qt4-x11
>
> Once you have confirmation from upstream we can adjust those accordingly.
>
> Regards,
> Salvatore

I have just did:

<https://lists.qt-project.org/pipermail/development/2020-January/038534.html>

  The patch just make sure that we don't do wrong call when the search prefixes
  contains '/'
  But before 5.12 (commit 5219c37f7c98f37f078fee00fe8ca35d83ff4f5d), there were
  no search prefixes with '/' in them.
  So no need to apply the patch in earlier versions.

So:

- None of the above CVEs affect qt4-x11
- stretch and buster already have the fixes in the security repo.

Cheers, and thanks a lot!

-- 
Lisandro Damián Nicanor Pérez Meyer
http://perezmeyer.com.ar/
http://perezmeyer.blogspot.com/