File ImageMagick-CVE-2020-27771.patch of Package ImageMagick

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File ImageMagick-CVE-2020-27771.patch of Package ImageMagick

Index: ImageMagick-6.8.8-1/coders/pdf.c
===================================================================
--- ImageMagick-6.8.8-1.orig/coders/pdf.c	2020-12-07 10:54:06.120126573 +0100
+++ ImageMagick-6.8.8-1/coders/pdf.c	2020-12-07 10:56:05.204801003 +0100
@@ -1987,7 +1987,7 @@ RestoreMSCWarning
                   break;
                 indexes=GetVirtualIndexQueue(image);
                 for (x=0; x < (ssize_t) image->columns; x++)
-                  *q++=(unsigned char) GetPixelIndex(indexes+x);
+                  *q++=(unsigned char) ((ssize_t) GetPixelIndex(indexes+x));
                 if (image->previous == (Image *) NULL)
                   {
                     status=SetImageProgress(image,SaveImageTag,
@@ -2029,7 +2029,7 @@ RestoreMSCWarning
                 indexes=GetVirtualIndexQueue(image);
                 for (x=0; x < (ssize_t) image->columns; x++)
                   Ascii85Encode(image,(unsigned char)
-                    GetPixelIndex(indexes+x));
+                    ((ssize_t) GetPixelIndex(indexes+x)));
                 if (image->previous == (Image *) NULL)
                   {
                     status=SetImageProgress(image,SaveImageTag,
@@ -2450,7 +2450,7 @@ RestoreMSCWarning
                   break;
                 indexes=GetVirtualIndexQueue(tile_image);
                 for (x=0; x < (ssize_t) tile_image->columns; x++)
-                  *q++=(unsigned char) GetPixelIndex(indexes+x);
+                  *q++=(unsigned char) ((ssize_t) GetPixelIndex(indexes+x));
               }
 #if defined(MAGICKCORE_ZLIB_DELEGATE)
               if (compression == ZipCompression)
@@ -2485,7 +2485,7 @@ RestoreMSCWarning
                 indexes=GetVirtualIndexQueue(tile_image);
                 for (x=0; x < (ssize_t) tile_image->columns; x++)
                   Ascii85Encode(image,(unsigned char)
-                    GetPixelIndex(indexes+x));
+                    ((ssize_t) GetPixelIndex(indexes+x)));
               }
               Ascii85Flush(image);
               break;

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File ImageMagick-CVE-2020-27771.patch of Package ImageMagick

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