This update for ffmpeg fixes the following issues:
Updated ffmpeg to new bugfix release 3.4.2
- Fix integer overflows, multiplication overflows, undefined
shifts, and verify buffer lengths.
- avfilter/vf_transpose: Fix used plane count
[boo#1078488, CVE-2018-6392]
- avcodec/utvideodec: Fix bytes left check in decode_frame()
[boo#1079368, CVE-2018-6621]
- Enable use of libzvbi for displaying teletext subtitles.
- Fixed a DoS in swri_audio_convert() [boo#1072366, CVE-2017-17555].
Update to new bugfix release 3.4.1
- Fixed integer overflows, division by zero, illegal bit shifts
- Fixed the gmc_mmx function which failed to validate width
and height [boo#1070762, CVE-2017-17081]
- Fixed out-of-bounds in VC-2 encoder [boo#1069407, CVE-2017-16840]
- ffplay: use SDL2 audio API