File ImageMagick-CVE-2016-9559.patch of Package ImageMagick

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File ImageMagick-CVE-2016-9559.patch of Package ImageMagick

From b61d35eaccc0a7ddeff8a1c3abfcd0a43ccf210b Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Wed, 9 Nov 2016 15:57:28 -0500
Subject: [PATCH] https://github.com/ImageMagick/ImageMagick/issues/298

---
 MagickCore/property.c |  4 ++--
 coders/tiff.c         | 43 ++++++++++++++++++++++++++++---------------
 coders/txt.c          |  3 +--
 3 files changed, 31 insertions(+), 19 deletions(-)

Index: ImageMagick-6.8.9-8/coders/tiff.c
===================================================================
--- ImageMagick-6.8.9-8.orig/coders/tiff.c	2016-11-28 12:05:28.763364470 +0100
+++ ImageMagick-6.8.9-8/coders/tiff.c	2016-11-28 12:06:04.723960835 +0100
@@ -617,41 +617,54 @@ static void TIFFGetProperties(TIFF *tiff
   uint32
     count;
 
-  if (TIFFGetField(tiff,TIFFTAG_ARTIST,&text) == 1)
+  if ((TIFFGetField(tiff,TIFFTAG_ARTIST,&text) == 1) &&
+      (text != (char *) NULL))
     (void) SetImageProperty(image,"tiff:artist",text);
-  if (TIFFGetField(tiff,TIFFTAG_COPYRIGHT,&text) == 1)
+  if ((TIFFGetField(tiff,TIFFTAG_COPYRIGHT,&text) == 1) &&
+      (text != (char *) NULL))
     (void) SetImageProperty(image,"tiff:copyright",text);
-  if (TIFFGetField(tiff,TIFFTAG_DATETIME,&text) == 1)
+  if ((TIFFGetField(tiff,TIFFTAG_DATETIME,&text) == 1) &&
+      (text != (char *) NULL))
     (void) SetImageProperty(image,"tiff:timestamp",text);
-  if (TIFFGetField(tiff,TIFFTAG_DOCUMENTNAME,&text) == 1)
+  if ((TIFFGetField(tiff,TIFFTAG_DOCUMENTNAME,&text) == 1) &&
+      (text != (char *) NULL))
     (void) SetImageProperty(image,"tiff:document",text);
-  if (TIFFGetField(tiff,TIFFTAG_HOSTCOMPUTER,&text) == 1)
+  if ((TIFFGetField(tiff,TIFFTAG_HOSTCOMPUTER,&text) == 1) &&
+      (text != (char *) NULL))
     (void) SetImageProperty(image,"tiff:hostcomputer",text);
-  if (TIFFGetField(tiff,TIFFTAG_IMAGEDESCRIPTION,&text) == 1)
+  if ((TIFFGetField(tiff,TIFFTAG_IMAGEDESCRIPTION,&text) == 1) &&
+      (text != (char *) NULL))
     (void) SetImageProperty(image,"comment",text);
-  if (TIFFGetField(tiff,TIFFTAG_MAKE,&text) == 1)
+  if ((TIFFGetField(tiff,TIFFTAG_MAKE,&text) == 1) &&
+      (text != (char *) NULL))
     (void) SetImageProperty(image,"tiff:make",text);
-  if (TIFFGetField(tiff,TIFFTAG_MODEL,&text) == 1)
+  if ((TIFFGetField(tiff,TIFFTAG_MODEL,&text) == 1) &&
+      (text != (char *) NULL))
     (void) SetImageProperty(image,"tiff:model",text);
-  if (TIFFGetField(tiff,TIFFTAG_OPIIMAGEID,&count,&text) == 1)
+  if ((TIFFGetField(tiff,TIFFTAG_OPIIMAGEID,&count,&text) == 1) &&
+      (text != (char *) NULL))
     {
       if (count >= MaxTextExtent)
         count=MaxTextExtent-1;
       (void) CopyMagickString(message,text,count+1);
       (void) SetImageProperty(image,"tiff:image-id",message);
     }
-  if (TIFFGetField(tiff,TIFFTAG_PAGENAME,&text) == 1)
+  if ((TIFFGetField(tiff,TIFFTAG_PAGENAME,&text) == 1) &&
+      (text != (char *) NULL))
     (void) SetImageProperty(image,"label",text);
-  if (TIFFGetField(tiff,TIFFTAG_SOFTWARE,&text) == 1)
+  if ((TIFFGetField(tiff,TIFFTAG_SOFTWARE,&text) == 1) &&
+      (text != (char *) NULL))
     (void) SetImageProperty(image,"tiff:software",text);
-  if (TIFFGetField(tiff,33423,&count,&text) == 1)
+  if ((TIFFGetField(tiff,33423,&count,&text) == 1) &&
+      (text != (char *) NULL))
     {
       if (count >= MaxTextExtent)
         count=MaxTextExtent-1;
       (void) CopyMagickString(message,text,count+1);
       (void) SetImageProperty(image,"tiff:kodak-33423",message);
     }
-  if (TIFFGetField(tiff,36867,&count,&text) == 1)
+  if ((TIFFGetField(tiff,36867,&count,&text) == 1) &&
+      (text != (char *) NULL))
     {
       if (count >= MaxTextExtent)
         count=MaxTextExtent-1;

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