From: Cristy <mikayla-grace@urban-warrior.org>
Date: Mon, 6 May 2019 22:24:06 +0000 (-0400)
Subject: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14610
X-Git-Tag: 7.0.8-45~18
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=610a8f4381034eec0af4d74aadac0bfa687b5295;p=imagemagick

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14610
---

diff --git a/MagickCore/xml-tree.c b/MagickCore/xml-tree.c
index 1abeeb4f0..4edfb9011 100644
--- a/MagickCore/xml-tree.c
+++ b/MagickCore/xml-tree.c
@@ -1731,6 +1731,8 @@ static MagickBooleanType ParseInternalDoctype(XMLTreeRoot *root,char *xml,
         if ((isalpha((int) ((unsigned char) *n)) == 0) && (*n != '_'))
           break;
         xml=n+strcspn(n,XMLWhitespace);
+        if (*xml == '\0')
+          break;
         *xml=';';
         v=xml+strspn(xml+1,XMLWhitespace)+1;
         q=(*v);