File _patchinfo of Package patchinfo.8794

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File _patchinfo of Package patchinfo.8794

<patchinfo incident="8794">
  <issue tracker="bnc" id="1105869">VUL-1: CVE-2018-15822: ffmpeg: The flv_write_packet function in libavformat/flvenc.c in FFmpeg through 4.0.2does not check for an empty audio packet, leading to an assertion failure.</issue>
  <issue tracker="bnc" id="1100348">VUL-1: CVE-2018-13300: ffmpeg: Improper argument (AVCodecParameters) passed to the avpriv_request_sample function in the handle_eac3 function may trigger an out-of-array read</issue>
  <issue tracker="bnc" id="1100345">VUL-0: CVE-2018-13305: ffmpeg: In FFmpeg 4.0.1, due to a missing check for negative values of the mqauntvariable, the vc1_put_blocks_clamped function in libavcodec/vc1_block.c maytrigger an out-of-array access while converting a crafted A</issue>
  <issue tracker="bnc" id="1097983">VUL-0: CVE-2018-12458: ffmpeg: An improper integer type in the mpeg4_encode_gop_header function inlibavcodec/mpeg4videoenc.c in FFmpeg 4.0 may trigger an assertion violationwhile converting a crafted AVI file to MPEG4, leading to a denial</issue>
  <issue tracker="cve" id="2018-15822"/>
  <issue tracker="cve" id="2018-13300"/>
  <issue tracker="cve" id="2018-13305"/>
  <issue tracker="cve" id="2018-12458"/>
  <category>security</category>
  <rating>moderate</rating>
  <packager>zhengqiang</packager>
  <description>This update for ffmpeg fixes the following issues:

- CVE-2018-13300: An improper argument passed to the avpriv_request_sample
  function may have triggered an out-of-array read while converting a crafted AVI
  file to MPEG4, leading to a denial of service and possibly an information
  disclosure (bsc#1100348)
- CVE-2018-15822: The flv_write_packet function did not check for an empty
  audio packet, leading to an assertion failure and DoS (bsc#1105869)
- CVE-2018-13305: Due to a missing check for negative values of the mquant
  variable, the vc1_put_blocks_clamped function in libavcodec/vc1_block.c
  may trigger an out-of-array access while converting a crafted AVI
  file to MPEG4, leading to an information disclosure or a denial of
  service. (bsc#1100345).
- CVE-2018-12458: An improper integer type in the mpeg4_encode_gop_header
  function in libavcodec/mpeg4videoenc.c might have triggered an assertion
  violation while converting a crafted AVI file to MPEG4, leading to a
  denial of service. (bsc#1097983).
</description>
  <summary>Security update for ffmpeg</summary>
</patchinfo>

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