Memory leak in the png_handle_tEXt function in pngrutil.c in libpng before 1.2.33 rc02 and 1.4.0 beta36 allows context-dependent attackers to cause a denial of service (memory exhaustion) via a crafted PNG file.
http://secunia.com/advisories/32418
http://secunia.com/advisories/34265
http://secunia.com/advisories/34320
http://secunia.com/advisories/34388
http://security.gentoo.org/glsa/glsa-200903-28.xml
https://exchange.xforce.ibmcloud.com/vulnerabilities/46115
http://sourceforge.net/project/shownotes.php?release_id=635463&group_id=5624
http://sourceforge.net/project/shownotes.php?release_id=635837
http://wiki.rpath.com/Advisories:rPSA-2009-0046
http://www.debian.org/security/2009/dsa-1750
http://www.mandriva.com/security/advisories?name=MDVSA-2010:133
http://www.securitytracker.com/id?1021104