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d="scan'208";a="529836584" Received: from rcdn-l-core-09.cisco.com ([173.37.255.146]) by rcdn-iport-3.cisco.com with ESMTP/TLS/TLS_AES_256_GCM_SHA384; 30 Sep 2026 06:00:27 +0000 Received: from sjc-ads-4178.cisco.com (sjc-ads-4178.cisco.com [171.70.54.199]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "ciscoit-managed-infra-smtp-auth.cisco.com", Issuer "Internal Private TLS SubCA" (verified OK)) by rcdn-l-core-09.cisco.com (Postfix) with ESMTPS id B0E0C18000480; Wed, 30 Sep 2026 06:00:27 +0000 (GMT) Received: by sjc-ads-4178.cisco.com (Postfix, from userid 1887505) id 57F85CC1292; Tue, 29 Sep 2026 23:00:27 -0700 (PDT) From: "Hetvi Thakar -X (hthakar - E INFOCHIPS PRIVATE LIMITED at Cisco)" To: openembedded-core@lists.openembedded.org Cc: xe-linux-external@cisco.com Subject: [OE-core][scarthgap][PATCH 1/3] openssh: fix CVE-2026-73283 Date: Tue, 29 Sep 2026 23:00:25 -0700 Message-Id: <20260930060027.1560262-1-hthakar@cisco.com> X-Mailer: git-send-email 2.35.6 MIME-Version: 1.0 X-Auto-Response-Suppress: DR, OOF, AutoReply X-Outbound-Client-TLS: VERIFIED;sjc-ads-4178.cisco.com [171.70.54.199];TLSv1.3;TLS_AES_256_GCM_SHA384;256;ciscoit-managed-infra-smtp-auth.cisco.com X-Outbound-SMTP-Client: 171.70.54.199, sjc-ads-4178.cisco.com X-Outbound-Node: rcdn-l-core-09.cisco.com List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 30 Sep 2026 06:00:39 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/246916 From: Hetvi Thakar This patch applies the upstream fix that makes the authorized_keys restrict keyword apply to tunnel forwarding. The upstream fix commit is referenced in [1], and the public CVE advisory is referenced in [2]. [1] https://github.com/openssh/openssh-portable/commit/d322f2ccf7da095ce94d1d99cb563246f61487b [2] https://www.cve.org/CVERecord?id=CVE-2026-73283 Signed-off-by: Hetvi Thakar --- .../openssh/openssh/CVE-2026-73283.patch | 42 +++++++++++++++++++ .../openssh/openssh_9.6p1.bb | 1 + 2 files changed, 43 insertions(+) create mode 100644 meta/recipes-connectivity/openssh/openssh/CVE-2026-73283.patch diff --git a/meta/recipes-connectivity/openssh/openssh/CVE-2026-73283.patch b/meta/recipes-connectivity/openssh/openssh/CVE-2026-73283.patch new file mode 100644 index 0000000000..c9acb8dd13 --- /dev/null +++ b/meta/recipes-connectivity/openssh/openssh/CVE-2026-73283.patch @@ -0,0 +1,42 @@ +From d322f2ccf7da095ce94d1d99cb563246f61487b0 Mon Sep 17 00:00:00 2001 +From: djm@openbsd.org +Date: Tue, 14 Jul 2026 01:05:05 +0000 +Subject: [PATCH] upstream: make authorized_keys "restrict" keyword apply + correctly + +to tunnel forwarding (which is administratively disabled by default). + +Reported by Erichen, Institute of Computing Technology, +Chinese Academy of Sciences + +OpenBSD-Commit-ID: 5b3cc987a64749c94b20e12755db32a83f8f01e6 + +CVE: CVE-2026-73283 +Upstream-Status: Backport [https://github.com/openssh/openssh-portable/commit/d322f2ccf7da095ce94d1d99cb563246f61487b0] + +Backport Changes: +- Omitted the upstream OpenBSD RCS revision header update because it does + not apply to the OpenSSH 9.6p1 source revision. + +(cherry picked from commit d322f2ccf7da095ce94d1d99cb563246f61487b0) +Signed-off-by: Hetvi Thakar +--- + serverloop.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +diff --git a/serverloop.c b/serverloop.c +index c1fe99d1..56d8be75 100644 +--- a/serverloop.c ++++ b/serverloop.c +@@ -531,7 +531,8 @@ server_request_tun(struct ssh *ssh) + ssh_packet_send_debug(ssh, "Unsupported tunnel device mode."); + return NULL; + } +- if ((options.permit_tun & mode) == 0 || options.disable_forwarding) { ++ if ((options.permit_tun & mode) == 0 || options.disable_forwarding || ++ auth_opts->restricted) { + ssh_packet_send_debug(ssh, "Server has rejected tunnel device " + "forwarding"); + return NULL; +-- +2.43.0 diff --git a/meta/recipes-connectivity/openssh/openssh_9.6p1.bb b/meta/recipes-connectivity/openssh/openssh_9.6p1.bb index b48e262c72..f660e78dba 100644 --- a/meta/recipes-connectivity/openssh/openssh_9.6p1.bb +++ b/meta/recipes-connectivity/openssh/openssh_9.6p1.bb @@ -44,6 +44,7 @@ SRC_URI = "http://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/openssh-${PV}.tar file://CVE-2026-60001.patch \ file://CVE-2026-60002.patch \ file://CVE-2026-60000.patch \ + file://CVE-2026-73283.patch \ " SRC_URI[sha256sum] = "910211c07255a8c5ad654391b40ee59800710dd8119dd5362de09385aa7a777c"