Mozilla Firefox before 20.0 and SeaMonkey before 2.17, when gfx.color_management.enablev4 is used, do not properly handle color profiles during PNG rendering, which allows remote attackers to obtain sensitive information from process memory or cause a denial of service (memory corruption) via a grayscale PNG image.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17021
https://bugzilla.mozilla.org/show_bug.cgi?id=722831
http://www.mozilla.org/security/announce/2013/mfsa2013-39.html
http://lists.opensuse.org/opensuse-updates/2013-06/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00019.html
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00013.html
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00009.html