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-rw-r--r--lib/escape.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/escape.c b/lib/escape.c
index 6a26cf8ef..aa7db2c5b 100644
--- a/lib/escape.c
+++ b/lib/escape.c
@@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@@ -159,7 +159,8 @@ CURLcode Curl_urldecode(struct SessionHandle *data,
while(--alloc > 0) {
in = *string;
- if(('%' == in) && ISXDIGIT(string[1]) && ISXDIGIT(string[2])) {
+ if(('%' == in) && (alloc > 2) &&
+ ISXDIGIT(string[1]) && ISXDIGIT(string[2])) {
/* this is two hexadecimal digits following a '%' */
char hexstr[3];
char *ptr;