File ImageMagick-CVE-2016-10049.patch of Package ImageMagick.29977

Overview Repositories Revisions Requests Users Attributes Meta

File ImageMagick-CVE-2016-10049.patch of Package ImageMagick.29977

From 3e9165285eda6e1bb71172031d3048b51bb443a4 Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Tue, 17 May 2016 15:05:03 -0400
Subject: [PATCH] 
 https://www.imagemagick.org/discourse-server/viewtopic.php?f=3&t=29710

---
 coders/rle.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Index: ImageMagick-6.8.8-1/coders/rle.c
===================================================================
--- ImageMagick-6.8.8-1.orig/coders/rle.c	2017-01-17 10:11:05.422914972 +0100
+++ ImageMagick-6.8.8-1/coders/rle.c	2017-01-17 10:41:17.096846142 +0100
@@ -62,6 +62,12 @@
 #include "magick/string_.h"
 #include "magick/module.h"
 
+static inline size_t MagickMax(const size_t x,const size_t y)
+{
+  if (x > y)
+    return(x);
+  return(y);
+}
 /*
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %                                                                             %
@@ -306,11 +312,11 @@ static Image *ReadRLEImage(const ImageIn
     number_planes_filled=(number_planes % 2 == 0) ? number_planes : number_planes+1;
     if ((number_pixels*number_planes_filled) != (size_t) (number_pixels*number_planes_filled))
       ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
-    pixel_info_length=image->columns*image->rows*number_planes_filled;
-    if (image->rows > (image->rows*number_planes_filled*sizeof(*pixels)))
+    pixel_info_length=image->columns*image->rows*MagickMax(number_planes_filled,4);
+    if (image->rows > (image->rows*MagickMax(number_planes_filled,4)*sizeof(*pixels)))
       ThrowReaderException(CorruptImageError,"ImproperImageHeader");
     pixel_info=AcquireVirtualMemory(image->columns,image->rows*
-      number_planes_filled*sizeof(*pixels));
+      MagickMax(number_planes_filled,4)*sizeof(*pixels));
     if (pixel_info == (MemoryInfo *) NULL)
       ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
     pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info);

Places

File ImageMagick-CVE-2016-10049.patch of Package ImageMagick.29977

Places