Another libpng security hole

libpng (1.2.44-1+squeeze2) stable-security; urgency=high

  * Fix integer overflow (chromium #112822)

 -- Moritz Muehlenhoff <jmm@pisco>  Wed, 15 Feb 2012 18:07:34 +0000

We ship libpng in TBB for Linux. Do we ship a copy anywhere else?