1 files changed, 3 insertions, 1 deletions

diff --git a/gss-serv.c b/gss-serv.c
index 365e48d88..380895ea5 100644
--- a/gss-serv.c
+++ b/gss-serv.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: gss-serv.c,v 1.22 2008/05/08 12:02:23 djm Exp $ */
+/* $OpenBSD: gss-serv.c,v 1.23 2011/08/01 19:18:15 markus Exp $ */
 
 /*
  * Copyright (c) 2001-2009 Simon Wilkinson. All rights reserved.
@@ -266,6 +266,8 @@ ssh_gssapi_parse_ename(Gssctxt *ctx, gss_buffer_t ename, gss_buffer_t name)
         name->length = get_u32(tok+offset);
         offset += 4;
 
+        if (UINT_MAX - offset < name->length)
+                return GSS_S_FAILURE;
         if (ename->length < offset+name->length)
                 return GSS_S_FAILURE;