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CVE-2023-1667:packet: Do not allow servers to initiate handshake

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Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Norbert Pocs <npocs@redhat.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Jakub Jelen
2023-03-14 11:35:43 +01:00
committed by Andreas Schneider
parent 85ddd8b34e
commit 6887a5bb20
1 changed files with 5 additions and 0 deletions
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5
src/packet.c
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@@ -366,6 +366,11 @@ static enum ssh_packet_filter_result_e ssh_packet_incoming_filter(ssh_session se
* - session->dh_handhsake_state = DH_STATE_NEWKEYS_SENT
* */
if (!session->server) {
rc = SSH_PACKET_DENIED;
break;
}
if (session->session_state != SSH_SESSION_STATE_DH) {
rc = SSH_PACKET_DENIED;
break;