libav (6:11.12-1~deb8u4) jessie-security; urgency=high

libav (6:11.12-1~deb8u4) jessie-security; urgency=high

  * Non-maintainer upload by the LTS team.
  * Fix the following security vulnerabilities:
  * CVE-2017-14055: a DoS in mv_read_header() due to lack of an EOF (End of
    File) check might cause huge CPU and memory consumption.
  * CVE-2017-14056: a DoS in rl2_read_header() due to lack of an EOF (End of
    File) check might cause huge CPU and memory consumption.
  * CVE-2017-14057: a DoS in asf_read_marker() due to lack of an EOF (End of
    File) check might cause huge CPU and memory consumption.
  * CVE-2017-14170: a DoS in mxf_read_index_entry_array() due to lack of an EOF
    (End of File) check might cause huge CPU consumption.
  * CVE-2017-14171: a DoS in nsv_parse_NSVf_header() due to lack of an EOF (End
    of File) check might cause huge CPU consumption.
  * CVE-2017-14767: The sdp_parse_fmtp_config_h264 function in
    libavformat/rtpdec_h264.c mishandles empty sprop-parameter-sets values, which
    allows remote attackers to cause a denial of service (heap buffer overflow)
    or possibly have unspecified other impact via a crafted sdp file.
  * CVE-2017-15672: The read_header function in libavcodec/ffv1dec.c allows
    remote attackers to have unspecified impact via a crafted MP4 file, which
    triggers an out-of-bounds read.
  * CVE-2017-17130: The ff_free_picture_tables function in
    libavcodec/mpegpicture.c allows remote attackers to cause a denial of service
    (heap-based buffer overflow and application crash) or possibly have
    unspecified other impact via a crafted file, related to
    vc1_decode_i_blocks_adv.
  * CVE-2017-9993: Libav does not properly restrict HTTP Live Streaming
    filename extensions and demuxer names, which allows attackers to read
    arbitrary files via crafted playlist data.
  * CVE-2017-9994: libavcodec/webp.c in Libav before does not ensure that
    pix_fmt is set, which allows remote attackers to cause a denial of service
    (heap-based buffer overflow and application crash) or possibly have
    unspecified other impact via a crafted file, related to the
    vp8_decode_mb_row_no_filter and pred8x8_128_dc_8_c functions.
  * CVE-2018-14394: libavformat/movenc.c in Libav allows attackers to cause a
    denial of service (application crash caused by a divide-by-zero error) with a
    user crafted Waveform audio file.
  * CVE-2018-1999010: Libav contains multiple out of array access
    vulnerabilities in the mms protocol that can result in attackers accessing
    out of bound data.
  * CVE-2018-6621: The decode_frame function in libavcodec/utvideodec.c in
    Libav allows remote attackers to cause a denial of service (out of array
    read) via a crafted AVI file.
  * CVE-2018-7557: The decode_init function in libavcodec/utvideodec.c in
    Libav allows remote attackers to cause a denial of service (Out of array
    read) via an AVI file with crafted dimensions within chroma subsampling
    data.

[dgit import unpatched libav 6:11.12-1~deb8u4]