Comment # 1 on bug 1143244 from Antonio Larrosa

Note that our libav package has this in %prep:
rm -Rf libavcodec libavdevice libavfilter libavformat libavresample libavutil
libswscale

And then the ffmpeg libraries are used to generate only the libav-tools
package.

I tested the poc file in Leap 15.0 and TW. In both cases, error messages are
shown and no infinite loop is entered, so we don't seem to be affected:

> avconv -y -i poc /dev/null
avconv version 12.3, Copyright (c) 2000-2018 the Libav developers
  built on Mar 26 2018 12:39 with gcc 7 (SUSE Linux)
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x55f3b86b5320] moov atom not found
poc: Invalid data found when processing input

So I suggest marking this as resolved/invalid