File ImageMagick-CVE-2017-11505,11526.patch of Package ImageMagick.29977

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File ImageMagick-CVE-2017-11505,11526.patch of Package ImageMagick.29977

Index: ImageMagick-6.8.8-1/coders/png.c
===================================================================
--- ImageMagick-6.8.8-1.orig/coders/png.c	2018-01-12 11:18:25.106246195 +0100
+++ ImageMagick-6.8.8-1/coders/png.c	2018-01-12 11:18:46.010592674 +0100
@@ -4262,7 +4262,15 @@ static Image *ReadOneJNGImage(MngInfo *m
           ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 
         for (i=0; i < (ssize_t) length; i++)
-          chunk[i]=(unsigned char) ReadBlobByte(image);
+        {
+          int
+            c;
+
+          c=ReadBlobByte(image);
+          if (c == EOF)
+            break;
+          chunk[i]=(unsigned char) c;
+        }
 
         p=chunk;
       }
@@ -5134,7 +5142,15 @@ static Image *ReadOneMNGImage(MngInfo* m
               ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
 
             for (i=0; i < (ssize_t) length; i++)
-              chunk[i]=(unsigned char) ReadBlobByte(image);
+            {
+              int
+                c;
+
+              c=ReadBlobByte(image);
+              if (c == EOF)
+                break;
+              chunk[i]=(unsigned char) c;
+            }
 
             p=chunk;
           }

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File ImageMagick-CVE-2017-11505,11526.patch of Package ImageMagick.29977

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