File tiff-CVE-2023-52356.patch of Package tiff.32256

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File tiff-CVE-2023-52356.patch of Package tiff.32256

Index: tiff-4.0.9/libtiff/tif_getimage.c
===================================================================
--- tiff-4.0.9.orig/libtiff/tif_getimage.c
+++ tiff-4.0.9/libtiff/tif_getimage.c
@@ -2929,6 +2929,14 @@ TIFFReadRGBAStripExt(TIFF* tif, uint32 r
 
     if (TIFFRGBAImageOK(tif, emsg) && TIFFRGBAImageBegin(&img, tif, stop_on_error, emsg)) {
 
+		if (row >= img.height)
+        {
+            TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif),
+                          "Invalid row passed to TIFFReadRGBAStrip().");
+            TIFFRGBAImageEnd(&img);
+            return (0);
+        }
+
         img.row_offset = row;
         img.col_offset = 0;
 
@@ -3004,6 +3012,14 @@ TIFFReadRGBATileExt(TIFF* tif, uint32 co
 	    return( 0 );
     }
 
+	if (col >= img.width || row >= img.height)
+    {
+        TIFFErrorExt(tif->tif_clientdata, TIFFFileName(tif),
+                      "Invalid row/col passed to TIFFReadRGBATile().");
+        TIFFRGBAImageEnd(&img);
+        return (0);
+    }
+
     /*
      * The TIFFRGBAImageGet() function doesn't allow us to get off the
      * edge of the image, even to fill an otherwise valid tile.  So we

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File tiff-CVE-2023-52356.patch of Package tiff.32256

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