Multiple integer overflows in the (1) user_info_callback, (2) user_endrow_callback, and (3) gst_pngdec_task functions (ext/libpng/gstpngdec.c) in GStreamer Good Plug-ins (aka gst-plugins-good or gstreamer-plugins-good) 0.10.15 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted PNG file, which triggers a buffer overflow.
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