A type conversion flaw leading to an out-of-bounds heap buffer read was found in the way libpng, a library of functions for manipulation PNG image format files, performed expansion of certain iCCP, iTXt, and zTXt PNG image file chunks. A remote attacker could provide a specially-crafted Portable Network Graphics (PNG) image file, which once opened in an application, linked against libpng, could lead to denial of service or in some cases, execution of arbitrary code with permission of the user running such an application. Upstream patch: http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=a8c319a2b281af68f7ca0e2f9a28ca57b44ceb2b#patch3
This issue affects the version of the libpng package, as shipped with Red Hat Enterprise Linux 5 and 6. -- This issue affects the version of the libpng package, as shipped with Fedora release of 15 and 16.
chromium repository commit: http://src.chromium.org/viewvc/chrome?view=rev&revision=125311
Upstream has released updates with a fix for this.
Created libpng tracking bugs for this issue Affects: fedora-all [bug 801667]
Created libpng10 tracking bugs for this issue Affects: epel-6 [bug 801665] Affects: fedora-all [bug 801666]
libpng10-1.0.58-1.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.
libpng-1.5.9-1.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.
libpng10-1.0.58-1.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.
libpng10-1.0.58-1.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 Via RHSA-2012:0407 https://rhn.redhat.com/errata/RHSA-2012-0407.html
libpng-1.2.48-1.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.
libpng10-1.0.58-1.el6 has been pushed to the Fedora EPEL 6 stable repository. If problems still persist, please make note of it in this bug report.
libpng-1.2.48-1.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.