From 7f4cfaec643863fcdc260da46af8d6581974101d Mon Sep 17 00:00:00 2001
From: mancha <mancha1@hush.com>
Date: Mon, 19 Aug 2013
Subject: CVE-2013-4244

* tools/gif2tiff.c: fix possible OOB write (#2452, CVE-2013-4244)

---
 gif2tiff.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/tools/gif2tiff.c	2013-08-20
+++ b/tools/gif2tiff.c	2013-08-20
@@ -396,6 +398,10 @@ process(register int code, unsigned char
     }
 
     if (oldcode == -1) {
+	if (code >= clear) {
+		fprintf(stderr, "bad input: code=%d is larger than clear=%d\n",code, clear);
+		return 0;
+	}
 	*(*fill)++ = suffix[code];
 	firstchar = oldcode = code;
 	return 1;