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authormarkus@openbsd.org <markus@openbsd.org>2017-03-15 07:07:39 +0000
committerDamien Miller <djm@mindrot.org>2017-03-17 17:12:44 +1100
commit2adbe1e63bc313d03e8e84e652cc623af8ebb163 (patch)
tree7e0b20c631d1c3427b3e8a1eea988577692e5b2c
parent2fbf91684d76d38b9cf06550b69c9e41bca5a71c (diff)
upstream commit
disallow KEXINIT before NEWKEYS; ok djm; report by vegard.nossum at oracle.com Upstream-ID: 3668852d1f145050e62f1da08917de34cb0c5234
-rw-r--r--kex.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/kex.c b/kex.c
index 8ac00299..cf4ac0dc 100644
--- a/kex.c
+++ b/kex.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: kex.c,v 1.130 2017/03/10 04:07:20 djm Exp $ */
+/* $OpenBSD: kex.c,v 1.131 2017/03/15 07:07:39 markus Exp $ */
/*
* Copyright (c) 2000, 2001 Markus Friedl. All rights reserved.
*
@@ -341,7 +341,6 @@ kex_reset_dispatch(struct ssh *ssh)
{
ssh_dispatch_range(ssh, SSH2_MSG_TRANSPORT_MIN,
SSH2_MSG_TRANSPORT_MAX, &kex_protocol_error);
- ssh_dispatch_set(ssh, SSH2_MSG_KEXINIT, &kex_input_kexinit);
}
static int
@@ -431,6 +430,7 @@ kex_input_newkeys(int type, u_int32_t seq, void *ctxt)
debug("SSH2_MSG_NEWKEYS received");
ssh_dispatch_set(ssh, SSH2_MSG_NEWKEYS, &kex_protocol_error);
+ ssh_dispatch_set(ssh, SSH2_MSG_KEXINIT, &kex_input_kexinit);
if ((r = sshpkt_get_end(ssh)) != 0)
return r;
if ((r = ssh_set_newkeys(ssh, MODE_IN)) != 0)
@@ -545,6 +545,7 @@ kex_new(struct ssh *ssh, char *proposal[PROPOSAL_MAX], struct kex **kexp)
goto out;
kex->done = 0;
kex_reset_dispatch(ssh);
+ ssh_dispatch_set(ssh, SSH2_MSG_KEXINIT, &kex_input_kexinit);
r = 0;
*kexp = kex;
out: