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-rw-r--r--sbin/iked/ikev2_pld.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/sbin/iked/ikev2_pld.c b/sbin/iked/ikev2_pld.c
index 451f57caf00..d72580498e4 100644
--- a/sbin/iked/ikev2_pld.c
+++ b/sbin/iked/ikev2_pld.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ikev2_pld.c,v 1.40 2014/04/28 11:21:02 reyk Exp $ */
+/* $OpenBSD: ikev2_pld.c,v 1.41 2014/05/05 15:21:20 markus Exp $ */
/*
* Copyright (c) 2010-2013 Reyk Floeter <reyk@openbsd.org>
@@ -616,6 +616,12 @@ ikev2_pld_attr(struct iked *env, struct ikev2_transform *xfrm,
} else {
/* Type-Length-Value attribute */
attr_length = betoh16(attr.attr_length);
+ if (attr_length < sizeof(attr)) {
+ log_debug("%s: payload malformed: shorter than "
+ "minimal header (%zu < %zu)", __func__,
+ attr_length, sizeof(attr));
+ return (-1);
+ }
if (total < attr_length) {
log_debug("%s: payload malformed: attribute larger "
"than actual payload (%zu < %zu)", __func__,