The gst_avi_demux_parse_ncdt function in gst/avi/gstavidemux.c in gst-plugins-good in GStreamer before 1.10.3 allows remote attackers to cause a denial of service (invalid memory read and crash) via a ncdt sub-tag that goes behind the surrounding tag. http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-5845