Security update for GraphicsMagick (important)

This update for GraphicsMagick fixes the following issues:

• a possible shell execution attack was fixed. if the first character of
  an input filename for ‘convert’ was a ‘|’ then the remainder of the
  filename was passed to the shell (CVE-2016-5118, boo#982178)
• Maliciously crafted pnm files could crash GraphicsMagick (CVE-2014-9805,
  [boo#983752])
• Prevent overflow in rle files (CVE-2014-9846, boo#983521)
• Fix a double free in pdb coder (CVE-2014-9807, boo#983794)
• Fix a possible crash due to corrupted xwd images (CVE-2014-9809,
  boo#983799)
• Fix a possible crash due to corrupted wpg images (CVE-2014-9815,
  boo#984372)
• Fix a heap buffer overflow in pdb file handling (CVE-2014-9817,
  boo#984400)
• Fix a heap overflow in xpm files (CVE-2014-9820, boo#984150)
• Fix a heap overflow in pict files (CVE-2014-9834, boo#984436)
• Fix a heap overflow in wpf files (CVE-2014-9835, CVE-2014-9831,
  boo#984145, boo#984375)
• Additional PNM sanity checks (CVE-2014-9837, boo#984166)
• Fix a possible crash due to corrupted dib file (CVE-2014-9845,
  boo#984394)
• Fix out of bound in quantum handling (CVE-2016-7529, boo#1000399)
• Fix out of bound access in xcf file coder (CVE-2016-7528, boo#1000434)
• Fix handling of corrupted lle files (CVE-2016-7515, boo#1000689)
• Fix out of bound access for malformed psd file (CVE-2016-7522,
  boo#1000698)
• Fix out of bound access for pbd files (CVE-2016-7531, boo#1000704)
• Fix out of bound access in corrupted wpg files (CVE-2016-7533,
  boo#1000707)
• Fix out of bound access in corrupted pdb files (CVE-2016-7537,
  boo#1000711)
• BMP Coder Out-Of-Bounds Write Vulnerability (CVE-2016-6823, boo#1001066)
• SGI Coder Out-Of-Bounds Read Vulnerability (CVE-2016-7101, boo#1001221)
• Divide by zero in WriteTIFFImage (do not divide by zero in
  WriteTIFFImage, boo#1002206)
• Buffer overflows in SIXEL, PDB, MAP, and TIFF coders (fix buffer
  overflow, boo#1002209)
• 8BIM/8BIMW unsigned underflow leads to heap overflow (CVE-2016-7800,
  boo#1002422)
• wpg reader issues (CVE-2016-7996, CVE-2016-7997, boo#1003629)
• Mismatch between real filesize and header values (CVE-2016-8684,
  boo#1005123)
• Stack-buffer read overflow while reading SCT header (CVE-2016-8682,
  boo#1005125)
• Check that filesize is reasonable compared to the header value
  (CVE-2016-8683, boo#1005127)
• Memory allocation failure in AcquireMagickMemory (CVE-2016-8862,
  boo#1007245)
• heap-based buffer overflow in IsPixelGray (CVE-2016-9556, boo#1011130)