graphics/giflib: Update to 5.1.2_1 breaks GIF rendering in Konqueror

[Mark Felder]

On Fri, Mar 18, 2016, at 06:28, Stefan Ehmann wrote:
> On 06.03.2016 19:13, Mark Felder wrote:
> >
> >
> > On Sun, Mar 6, 2016, at 04:15, Stefan Ehmann wrote:
> >> On 29.02.2016 18:25, Patrick Hess wrote:
> >>> Hi,
> >>>
> >>> After upgrading graphics/giflib from 5.1.1 to 5.1.2_1, Konqueror won't
> >>> display GIF images in web pages:
> >>>
> >>>       http://www.phess.net/images/giflib-bug.png
> >>>
> >>> On the left hand side, with giflib 5.1.1, everything looks as expected.
> >>> On the right hand side, after upgrading giflib to 5.1.2_1, none of the
> >>> GIF icons are rendered correctly. Only the Fresh Ports logo and the two
> >>> magnifying glass icons are still there (as they're JPEGs, not GIFs).
> >>
> >> I located the problem. konqueror isn't the only program affected.
> >>
> >> See https://sourceforge.net/p/giflib/bugs/84/
> >>
> >> You can put my patch in the SF ticket in
> >> /usr/ports/graphics/giflib/files/ to test it.
> >>
> >> I'll wait some days to see if there's an upstream fix before submitting
> >> a FreeBSD bugzilla ticket.
> >>
> >> The gvpart workaround I mentioned previously doesn't really work BTW.
> >> Some GIFs just worked by chance after konqueror restart.
> >>
> >
> > Hi,
> >
> > The giflib update was security related so this is a regression due to
> > the update I pushed. I am very pleased you were able to identify the
> > issue at hand.
> >
> > Please keep me / ports-secteam in the loop.
> 
> giflib-5.1.3 has been released. It contains our fix (plus a small number 
> of other fixes).

Thanks for the heads up.

-- 
  Mark Felder
  ports-secteam member
  feld at FreeBSD.org