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• pcx : use the bytestream2 API for reading from input

  14 août 2016, par Anton Khirnov

  pcx: use the bytestream2 API for reading from input
  
  Fixes possible invalid reads.
  
  CC: libav-stable@libav.org
  Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
  

  • [DBH] libavcodec/pcx.c

• pcx : check that the packet is large enough before reading the header

  14 août 2016, par Anton Khirnov

  pcx: check that the packet is large enough before reading the header
  
  Fixes possible invalid reads.
  
  CC: libav-stable@libav.org
  Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
  

  • [DBH] libavcodec/pcx.c

• pcx : properly pad the scanline

  14 août 2016, par Anton Khirnov

  pcx: properly pad the scanline
  
  It is passed to the get_bits API, which requires buffers to be padded.
  
  Fixes possible invalid reads.
  
  CC: libav-stable@libav.org
  Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
  

  • [DBH] libavcodec/pcx.c

• cook : use the bytestream2 API for reading extradata

  14 août 2016, par Anton Khirnov

  cook: use the bytestream2 API for reading extradata
  
  Fixes possible invalid reads in corrupted files.
  
  CC: libav-stable@libav.org
  Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
  

  • [DBH] libavcodec/cook.c

• qpeg : fix an off by 1 error in the MV check

  14 août 2016, par Anton Khirnov

  qpeg: fix an off by 1 error in the MV check
  
  height - me_y is the line from which we read, so it must be strictly
  smaller than the frame height. Fixes possible invalid reads in corrupted
  files.
  
  Also, use a proper context for logging the error.
  
  CC: libav-stable@libav.org
  Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
  

  • [DBH] libavcodec/qpeg.c