Security update for ffmpeg (important)

An update that fixes 8 vulnerabilities is now available.

Description:

This update for ffmpeg fixes the following issues:

• CVE-2019-9721: Fix denial of service in the subtitle decoder in
  handle_open_brace from libavcodec/htmlsubtitles.c (bsc#1129714).
• CVE-2020-22046: Fix a denial of service vulnerability exists in FFmpeg
  4.2 due to a memory leak in the avpriv_float_dsp_allocl function in
  libavutil/float_dsp.c (bsc#1186849).
• CVE-2020-22048: Fix a denial of service vulnerability exists in FFmpeg
  4.2 due to a memory leak in the ff_frame_pool_get function in
  framepool.c (bsc#1186859).
• CVE-2020-22049: Fix a denial of service vulnerability exists in FFmpeg
  4.2 due to a memory leak in the wtvfile_open_sector function in wtvdec.c
  (bsc#1186861).
• CVE-2020-22054: Fix a denial of service vulnerability exists in FFmpeg
  4.2 due to a memory leak in the av_dict_set function in dict.c
  (bsc#1186863).
• CVE-2020-21688: Fixed a heap-use-after-free in the av_freep function in
  libavutil/mem.c (bsc#1189348).
• CVE-2020-21697: Fixed a heap-use-after-free in the mpeg_mux_write_packet
  function in libavformat/mpegenc.c (bsc#1189350).
• CVE-2021-38114: Fixed a not checked return value of the init_vlc
  function (bsc#1189142).

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

• openSUSE Leap 15.3:

  zypper in -t patch openSUSE-SLE-15.3-2021-2919=1