* Non-maintainer upload by the LTS team..
* CVE-2015-1207: avformat/mov: Fix integer overflow in
mov_read_udta_string().
* CVE-2017-14169: In mxf_read_primer_pack() function, catch item_num
being negative, to avoid bypassing the check for a large value.
* CVE-2017-14223: avformat/asfdec: Fix DoS in asf_build_simple_index().
Fix missing EOF check in loop.
* CVE-2017-7863: Bail out if trns was found before IHDR or IDAT in PNG data.
* CVE-2014-8542: Add case for jv to avcodec_align_dimensions2().
* CVE-2017-7865: Add case for interplay_video to avcodec_align_dimensions2().