openssh/0001-upstream-fix-proxy-multiplexing-mode_-broken-when-keystroke.patch

33 lines
1.0 KiB
Diff
Raw Normal View History

- Update to openssh 9.9p1: * No changes for askpass, see main package changelog for details. - Update to openssh 9.9p1: = Future deprecation notice * OpenSSH plans to remove support for the DSA signature algorithm in early 2025. This release disables DSA by default at compile time. DSA, as specified in the SSHv2 protocol, is inherently weak - being limited to a 160 bit private key and use of the SHA1 digest. Its estimated security level is only 80 bits symmetric equivalent. OpenSSH has disabled DSA keys by default since 2015 but has retained run-time optional support for them. DSA was the only mandatory-to-implement algorithm in the SSHv2 RFCs, mostly because alternative algorithms were encumbered by patents when the SSHv2 protocol was specified. This has not been the case for decades at this point and better algorithms are well supported by all actively-maintained SSH implementations. We do not consider the costs of maintaining DSA in OpenSSH to be justified and hope that removing it from OpenSSH can accelerate its wider deprecation in supporting cryptography libraries. = Potentially-incompatible changes * ssh(1): remove support for pre-authentication compression. OpenSSH has only supported post-authentication compression in the server for some years. Compression before authentication significantly increases the attack surface of SSH servers and risks creating oracles that reveal information about information sent during authentication. OBS-URL: https://build.opensuse.org/package/show/network/openssh?expand=0&rev=275
2024-09-25 10:42:29 +02:00
From 9844aa2521ccfb1a2d73745680327b79e0574445 Mon Sep 17 00:00:00 2001
From: "djm@openbsd.org" <djm@openbsd.org>
Date: Wed, 21 Feb 2024 05:57:34 +0000
Subject: [PATCH] upstream: fix proxy multiplexing mode, broken when keystroke
timing
obfuscation was added. GHPR#463 from montag451
OpenBSD-Commit-ID: 4e412d59b3f557d431f1d81c715a3bc0491cc677
---
clientloop.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/clientloop.c b/clientloop.c
index eb4902905fb..8ec36af94b3 100644
--- a/clientloop.c
+++ b/clientloop.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: clientloop.c,v 1.402 2023/11/24 00:31:30 dtucker Exp $ */
+/* $OpenBSD: clientloop.c,v 1.403 2024/02/21 05:57:34 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -517,7 +517,7 @@ send_chaff(struct ssh *ssh)
{
int r;
- if ((ssh->kex->flags & KEX_HAS_PING) == 0)
+ if (ssh->kex == NULL || (ssh->kex->flags & KEX_HAS_PING) == 0)
return 0;
/* XXX probabilistically send chaff? */
/*