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-rw-r--r--usr.bin/ssh/ssh-rsa.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/usr.bin/ssh/ssh-rsa.c b/usr.bin/ssh/ssh-rsa.c
index 59329bda842..8c64235e465 100644
--- a/usr.bin/ssh/ssh-rsa.c
+++ b/usr.bin/ssh/ssh-rsa.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ssh-rsa.c,v 1.58 2015/12/11 04:21:12 mmcc Exp $ */
+/* $OpenBSD: ssh-rsa.c,v 1.59 2016/04/21 06:08:02 djm Exp $ */
/*
* Copyright (c) 2000, 2003 Markus Friedl <markus@openbsd.org>
*
@@ -167,7 +167,8 @@ ssh_rsa_verify(const struct sshkey *key,
if (key == NULL || key->rsa == NULL ||
sshkey_type_plain(key->type) != KEY_RSA ||
- BN_num_bits(key->rsa->n) < SSH_RSA_MINIMUM_MODULUS_SIZE)
+ BN_num_bits(key->rsa->n) < SSH_RSA_MINIMUM_MODULUS_SIZE ||
+ sig == NULL || siglen == 0)
return SSH_ERR_INVALID_ARGUMENT;
if ((b = sshbuf_from(sig, siglen)) == NULL)