From: Cristy <urban-warrior@imagemagick.org>
Date: Thu, 29 Jun 2017 15:37:30 +0000 (-0400)
Subject: https://github.com/ImageMagick/ImageMagick/issues/533
X-Git-Tag: 7.0.6-1~110
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=94933146cb2d9d95889a385f08d5eb5f92d4e3cd;p=imagemagick

https://github.com/ImageMagick/ImageMagick/issues/533
---

diff --git a/coders/dcm.c b/coders/dcm.c
index f1be260dc..04584d505 100644
--- a/coders/dcm.c
+++ b/coders/dcm.c
@@ -3269,6 +3269,8 @@ static Image *ReadDCMImage(const ImageInfo *image_info,ExceptionInfo *exception)
         else
           if ((quantum != 0) && (length != 0))
             {
+              if (length > GetBlobSize(image))
+                ThrowReaderException(CorruptImageError,"ImproperImageHeader");
               if (~length >= 1)
                 data=(unsigned char *) AcquireQuantumMemory(length+1,quantum*
                   sizeof(*data));