From patchwork Wed Sep 9 13:36:38 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Jakub Szczudlo (Nokia)" X-Patchwork-Id: 97735 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66DFAC79FB7 for ; Wed, 9 Sep 2026 13:36:48 +0000 (UTC) Received: from AM0PR02CU008.outbound.protection.outlook.com (AM0PR02CU008.outbound.protection.outlook.com [52.101.72.40]) by mx.groups.io with SMTP id smtpd.msgproc01-g2.12406.1788961004133811043 for ; Wed, 09 Sep 2026 06:36:44 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@nokia.com header.s=selector1 header.b=js1W/j10; spf=permerror, err=parse error for token &{10 18 %{i}._ip.%{h}._ehlo.%{d}._spf.vali.email}: invalid domain name (domain: nokia.com, ip: 52.101.72.40, mailfrom: jakub.szczudlo@nokia.com) ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=uF6kH2YOiSzvJ/LMgLETSTGx00t3OV6wV1uwvCzX1W2g58Hbp+3WchHItP+IubYC+RQ+pwSSMcoFG1YS8gP3QpePyeF8puo0/9xCBfWkpna5m674HZXAPNnNZflTqhb4iOqh4/TRSoZyHyPVUj/19EW2Lrqd1l4Le/Tg1J7SuK4dTk/QPnYogFr00vuYSMT/zHv0RHDAFT03qCK2a7DisQawIXzgjumm8ZURAHIx/AklPhrPjxaQXc8bginjfXdhwYkFQ/MGRGRfBfuW5mK5OHBaT5wkebX4Vk2gBxs59J7dHHG9O5Cq38RFWu0FWbQoG2g7f5EqBYtx6TB+c2JDdw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=CqPZL38Tq8CjZUAwBJq5sQu9BAbBdW2qmAAQNnOW1do=; b=ZWgRjKYQOOIy7VG+D/TGeHpVq0GAAEOJtipxjB4uOrpBBrjU5lZRm4WcR1ftpiYv5VKdc6IQjYD7eBS9dMmA6fLmnHKSAJzbGQ0UEiKGdR7a86Pkc+/1SeJ7JvEAjy5JckCrbs5RVzFzTwyv8cvMdlGpvjtEgLuRCC/KBTLeKC9qw3Ma0sHy7jgiC5M/PkfpeKjPD0JAx2RzKK86cEVjqKtwANlLZbTnyvj5VvDdVBYxIRCYsJGRksnHOnxmzq/8uqPuKzDOc6S19ZSzjSs9WpcDGZmIUzZIKNTOFDtvrjpZiR+86YXSrh1V61m45WgY1Prl1zFuWwyMTlVHhbJFzQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nokia.com; dmarc=pass action=none header.from=nokia.com; dkim=pass header.d=nokia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nokia.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=CqPZL38Tq8CjZUAwBJq5sQu9BAbBdW2qmAAQNnOW1do=; b=js1W/j10IBcz2Ey2K5tsy5KYEWycJgqcw4RSWZ2ef5q0RWLVKJYdrLt2rri2cAlys63eAp5HxlVgARJ3/bGdKxwqHQqSlfzEojOkzaSY8qi7NJJmG1OcjRrFpWIszbIR7ccHlHHlyA/q1eZ2bujsn2KnGa2cpF+7TvlLQiRS1SfMfmVfcMZJ619uUuv3f6qjkR/H+XxNsEFP02FjFePUNzoJ0Vaxzq0a086/9vW5M400Tm+A2bk+9qHyhxFjBvHh36I5D8/PP+cyg3DDgeHcsu8UL9qrncQVXu6gWVRpOYIf3XkKk54TK4U+z/pOZpdInkHfofLBDKsQirJCx9vIMA== Received: from GV2PR07MB11919.eurprd07.prod.outlook.com (2603:10a6:150:357::20) by VI0PR07MB12084.eurprd07.prod.outlook.com (2603:10a6:800:33b::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.406.7; Wed, 9 Sep 2026 13:36:38 +0000 Received: from GV2PR07MB11919.eurprd07.prod.outlook.com ([fe80::159a:9a82:1362:e680]) by GV2PR07MB11919.eurprd07.prod.outlook.com ([fe80::159a:9a82:1362:e680%3]) with mapi id 15.21.0360.008; Wed, 9 Sep 2026 13:36:38 +0000 From: "Jakub Szczudlo (Nokia)" To: "openembedded-core@lists.openembedded.org" CC: "yoann.congal@smile.fr" , "Jakub Szczudlo (Nokia)" Subject: [scarthgap][PATCH 1/5] gnutls: fix CVE-2026-42012 Thread-Topic: [scarthgap][PATCH 1/5] gnutls: fix CVE-2026-42012 Thread-Index: AQHdQGA9uOpBdqd1/keUEIWvlAoSLQ== Date: Wed, 9 Sep 2026 13:36:38 +0000 Message-ID: <20260909133633.3691-1-jakub.szczudlo@nokia.com> Accept-Language: en-US, en-150 Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: mx.microsoft.com 1; dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nokia.com; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: GV2PR07MB11919:EE_|VI0PR07MB12084:EE_ x-ms-office365-filtering-correlation-id: c6a5b53e-bdf7-4f30-e03a-08df0e775fd9 x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0;ARA:13230040|366016|23010399003|376014|1800799024|38070700021|5023799004|11063799006|10067099003|56012099006|18002099003|6133799003|12006099003|3023799007|13003099007; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:GV2PR07MB11919.eurprd07.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(366016)(23010399003)(376014)(1800799024)(38070700021)(5023799004)(11063799006)(10067099003)(56012099006)(18002099003)(6133799003)(12006099003)(3023799007)(13003099007);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?iso-8859-1?q?5GathJaAXTqM+SwBzAUwsk6?= =?iso-8859-1?q?EsU8zpbRkvcds1ZYN4l3v34a+vYciDsCoGHfwqzG7M9V3KItX6p3TEO/gxzD?= =?iso-8859-1?q?c7/lhPwAt+eoY5yYhvTBIso7zFXsraJdQ2lML0MkyzH4FNBYzPkpBGzlngDK?= =?iso-8859-1?q?UTL3uKaUV3gdwHtxWkSAVEilEAbbf3fg+YVrlQcwoXgQvBDgxLOAQBVgBWVw?= =?iso-8859-1?q?oOPNzjfZwkjplxSpu7CEYKvbMqW2n8Jy54JQCRsD6BKFZCN944CdHsVBghGs?= =?iso-8859-1?q?uDZqzevq1VWZhw8ElDzjMj9Sf6bTF75D0YycDrMyxaLR8kDBhXgq4Rhc/Fyb?= =?iso-8859-1?q?7zwuyos0XLtchCzzf5f2etTg/E9cEq4AYRoznBxEjaOlXDwF3/tLoq09R+Wj?= =?iso-8859-1?q?l1vkBGqyKRCg8+lPr2mlmXYOhVjpOwRC3vIC3mmasHeec5RaBm1cZBNqbVgk?= =?iso-8859-1?q?VO0ESCTXh/vU3UZC9Bo2j2oPol1VXMa7FMLbFc2oCMHmLtfHGlDDO2tCW4eY?= =?iso-8859-1?q?wtXMbCW6QayNvvZCC8eU/D85tHbcaM7++p6Iz3XFke21I79I+jc+yQxxmdsg?= =?iso-8859-1?q?LKfoZWnpr+5ItA2ay3FFkGtqeEGYSkdoTIYMP5hpCIbnIvLzV5GNcRVgAnEU?= =?iso-8859-1?q?ChI891VIyE+o0geQ72qkvPVTIV6jeerq/pEWSPzMc4FR5eR9J6YC9KylSa0q?= =?iso-8859-1?q?4WWZ+qxLzv3H/Y1A3WboIrWJu+K8HXgRWbSAo6g/89sLSRE8F1ZG0iZAtGjp?= =?iso-8859-1?q?3lTk888ZLwmFtvtihNMBWmxr/V+iEaxNGZ+wVvd1QPvCZWaoHjvpZ96oGWQP?= =?iso-8859-1?q?EUY1IQ7g/kN6pADT7ct4l2RDbDhoCNKhOmwfK1eQJef8QDANKJGI15LY/Ao8?= =?iso-8859-1?q?lyLIH/JFNLUvuXJZlT4YsEJHiFXCqFYXiqKmU4QoNNk64D4xVLfrN6dlWcNp?= =?iso-8859-1?q?KgwIAa0q51Bl41urqNOoFJ+lJRSnlIlr7aFS5EjKb6ia+ZTYincgmmf11/va?= =?iso-8859-1?q?nr6QCckbrVEB+6DPLQdDlhf4+3Wgwi8D5AlQvvcGTTXyKI51jYxJVlEVAWtI?= =?iso-8859-1?q?XheVWltvbwzG/fLGIvufzywMUBWb2cOamo8Ayy1t2jujnWjCnnRUknw+aoZS?= =?iso-8859-1?q?EK5PtCI1vJbxk5fQV1QVZerYv4FlP6Z+ziEFPBrajTMJnSYG/z3jd1Py/Wrm?= =?iso-8859-1?q?1fFkJY32J4uxzb7hTfsANnw0Afnt3zfUSxs16rjEjjvYVNeMn2ny7D4R2Y6B?= =?iso-8859-1?q?muojBoEqvoUZWhlGmRJfNTV6quDh8SNYRxMAu+t+TaiGGkmFkuMGZXWHxHJB?= =?iso-8859-1?q?ocfaIYPMmPtst5pWoxPwYZjo+dle/Q4EsDQX5viPas7h0vAMEiBvJoscL7Yb?= =?iso-8859-1?q?oF9sZHj6dIklC0saxzGJX+mn5WrpnZqoXw5fWSG4UR0gWQZCm/7gMv/C0eoU?= =?iso-8859-1?q?STCXOmUKRvx/sJF7FCWxvGYFt0Kql7F/seXPcvi02LarMj+aFta1wcNqBImT?= =?iso-8859-1?q?sjh+EzsuP19g9kW5YI96zDUGohIEf941A+UsaMm3fELqn6p8x7/aolawGDRY?= =?iso-8859-1?q?tGrXuo+7sYCISqAfxg8AEOmO6gzOBBa5vWJgwh1hhVNbAJiHEMsHZIQQ4W0n?= =?iso-8859-1?q?Pl2PYGuUl+U0yANW0kwPAAPHWh+ieFbg2d4w5JkHxe6zV+rBy1vIE7DLDDim?= =?iso-8859-1?q?zU2005Vacstf1krpPktezc7l+5lk63F9TwJ4qI+C93WvEZgHbYbTNtnp1hOw?= =?iso-8859-1?q?/IaJPfQS1ZReb9N9iXYe5vIe31OIamsM0trdgObz1k8fKMw=3D=3D?= MIME-Version: 1.0 X-OriginatorOrg: nokia.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: GV2PR07MB11919.eurprd07.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: c6a5b53e-bdf7-4f30-e03a-08df0e775fd9 X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Sep 2026 13:36:38.1808 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 5d471751-9675-428d-917b-70f44f9630b0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: M+IbozzAWzYXigYPgJz4lLKgVCfkR9K0g2TlwMKxINel+WthdRnvc9wDoOW09//4UC23ecsedkvi2JqNbd54gr0w+6yEnlj7BfD7gbAxQKo= X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI0PR07MB12084 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, 09 Sep 2026 13:36:48 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/245468 Backport patch to fix CVE-2026-42012. References: https://nvd.nist.gov/vuln/detail/CVE-2026-42012 Upstream fix: https://gitlab.com/gnutls/gnutls/-/commit/8dcc6a1f48945997666ac9f10896819edd01a03b Tested with ptest Pre patches taken from upstream so CVE fix will land cleanly Signed-off-by: Jakub Szczudlo --- .../gnutls/gnutls/CVE-2026-42012-pre1.patch | 70 ++++++++ .../gnutls/gnutls/CVE-2026-42012-pre2.patch | 156 ++++++++++++++++++ .../gnutls/gnutls/CVE-2026-42012-pre3.patch | 126 ++++++++++++++ .../gnutls/gnutls/CVE-2026-42012.patch | 48 ++++++ meta/recipes-support/gnutls/gnutls_3.8.4.bb | 4 + 5 files changed, 404 insertions(+) create mode 100644 meta/recipes-support/gnutls/gnutls/CVE-2026-42012-pre1.patch create mode 100644 meta/recipes-support/gnutls/gnutls/CVE-2026-42012-pre2.patch create mode 100644 meta/recipes-support/gnutls/gnutls/CVE-2026-42012-pre3.patch create mode 100644 meta/recipes-support/gnutls/gnutls/CVE-2026-42012.patch diff --git a/meta/recipes-support/gnutls/gnutls/CVE-2026-42012-pre1.patch b/meta/recipes-support/gnutls/gnutls/CVE-2026-42012-pre1.patch new file mode 100644 index 0000000000..1149dafef2 --- /dev/null +++ b/meta/recipes-support/gnutls/gnutls/CVE-2026-42012-pre1.patch @@ -0,0 +1,70 @@ +Backport of: + +From 6133fb459b74a9dcfa2d0ff010a4e03c56822d39 Mon Sep 17 00:00:00 2001 +From: Alexander Sosedkin +Date: Fri, 13 Mar 2026 17:00:03 +0100 +Subject: [PATCH] x509/hostname-verify: refactor and simplify CN fallback logic + +Signed-off-by: Alexander Sosedkin +CVE: CVE-2026-42012 +Upstream-Status: Backport [https://gitlab.com/gnutls/gnutls/-/commit/6133fb459b74a9dcfa2d0ff010a4e03c56822d39] + +Signed-off-by: Jakub Szczudlo +--- + lib/x509/hostname-verify.c | 15 ++++++--------- + 1 file changed, 6 insertions(+), 9 deletions(-) + +--- a/lib/x509/hostname-verify.c ++++ b/lib/x509/hostname-verify.c +@@ -108,7 +108,7 @@ unsigned gnutls_x509_crt_check_ip(gnutls + * that we do not fallback to CN-ID if we encounter a supported name + * type. + */ +-#define IS_SAN_SUPPORTED(san) \ ++#define PRECLUDES_CN_FALLBACK(san) \ + (san == GNUTLS_SAN_DNSNAME || san == GNUTLS_SAN_IPADDRESS) + + /** +@@ -151,13 +151,12 @@ unsigned gnutls_x509_crt_check_hostname2 + { + char dnsname[MAX_CN]; + size_t dnsnamesize; +- int found_dnsname = 0; + int ret = 0; + int i = 0; + struct in_addr ipv4; + char *p = NULL; + char *a_hostname; +- unsigned have_other_addresses = 0; ++ bool cn_fallback_allowed = true; + gnutls_datum_t out; + + /* check whether @hostname is an ip address */ +@@ -213,9 +212,10 @@ hostname_fallback: + ret = gnutls_x509_crt_get_subject_alt_name(cert, i, dnsname, + &dnsnamesize, NULL); + +- if (ret == GNUTLS_SAN_DNSNAME) { +- found_dnsname = 1; ++ if (PRECLUDES_CN_FALLBACK(ret)) ++ cn_fallback_allowed = false; + ++ if (ret == GNUTLS_SAN_DNSNAME) { + if (memchr(dnsname, '\0', dnsnamesize)) { + _gnutls_debug_log( + "certificate has %s with embedded null in name\n", +@@ -236,13 +236,10 @@ hostname_fallback: + ret = 1; + goto cleanup; + } +- } else { +- if (IS_SAN_SUPPORTED(ret)) +- have_other_addresses = 1; + } + } + +- if (!have_other_addresses && !found_dnsname && ++ if (cn_fallback_allowed && + _gnutls_check_key_purpose(cert, GNUTLS_KP_TLS_WWW_SERVER, 0) != 0) { + /* did not get the necessary extension, use CN instead, if the + * certificate would have been acceptable for a TLS WWW server purpose. diff --git a/meta/recipes-support/gnutls/gnutls/CVE-2026-42012-pre2.patch b/meta/recipes-support/gnutls/gnutls/CVE-2026-42012-pre2.patch new file mode 100644 index 0000000000..42adccc6ba --- /dev/null +++ b/meta/recipes-support/gnutls/gnutls/CVE-2026-42012-pre2.patch @@ -0,0 +1,156 @@ +Backport of: + +From 5cc003b9688378f6c7934b1df0aa147e80006be4 Mon Sep 17 00:00:00 2001 +From: Alexander Sosedkin +Date: Fri, 13 Mar 2026 17:41:33 +0100 +Subject: [PATCH] x509: add bare-bones awareness of SRV virtual SAN + +There's no support for constraints, no certtool support, no nothing. +Just added what's easy to add because I needed a virtual SAN for them. + +Signed-off-by: Alexander Sosedkin +CVE: CVE-2026-42012 +Upstream-Status: Backport [https://gitlab.com/gnutls/gnutls/-/commit/5cc003b9688378f6c7934b1df0aa147e80006be4] + +Backport Changes: +- common.h context updated for 3.8.4 (PKIX1_RSA_OAEP_P_SPECIFIED_OID). + +Signed-off-by: Jakub Szczudlo +--- + lib/includes/gnutls/gnutls.h.in | 4 +++- + lib/x509/common.h | 1 + + lib/x509/name_constraints.c | 3 ++- + lib/x509/output.c | 6 ++++++ + lib/x509/virt-san.c | 23 +++++++++++++++++++++++ + lib/x509/x509.c | 3 ++- + 6 files changed, 37 insertions(+), 3 deletions(-) + +--- a/lib/includes/gnutls/gnutls.h.in ++++ b/lib/includes/gnutls/gnutls.h.in +@@ -2646,6 +2646,7 @@ void gnutls_psk_set_server_params_functi + * @GNUTLS_SAN_OTHERNAME_XMPP: Virtual SAN, used by certain functions for convenience. + * @GNUTLS_SAN_OTHERNAME_KRB5PRINCIPAL: Virtual SAN, used by certain functions for convenience. + * @GNUTLS_SAN_OTHERNAME_MSUSERPRINCIPAL: Virtual SAN, used by certain functions for convenience. ++ * @GNUTLS_SAN_OTHERNAME_SRV: Virtual SAN, used by certain functions for convenience. + * + * Enumeration of different subject alternative names types. + */ +@@ -2663,7 +2664,8 @@ typedef enum gnutls_x509_subject_alt_nam + Used by gnutls_x509_crt_get_subject_alt_othername_oid. */ + GNUTLS_SAN_OTHERNAME_XMPP = 1000, + GNUTLS_SAN_OTHERNAME_KRB5PRINCIPAL, +- GNUTLS_SAN_OTHERNAME_MSUSERPRINCIPAL ++ GNUTLS_SAN_OTHERNAME_MSUSERPRINCIPAL, ++ GNUTLS_SAN_OTHERNAME_SRV + } gnutls_x509_subject_alt_name_t; + + struct gnutls_openpgp_crt_int; +--- a/lib/x509/common.h ++++ b/lib/x509/common.h +@@ -107,6 +107,7 @@ + #define XMPP_OID "1.3.6.1.5.5.7.8.5" + #define KRB5_PRINCIPAL_OID "1.3.6.1.5.2.2" + #define MSUSER_PRINCIPAL_NAME_OID "1.3.6.1.4.1.311.20.2.3" ++#define SRV_OID "1.3.6.1.5.5.7.8.7" + #define PKIX1_RSA_PSS_MGF1_OID "1.2.840.113549.1.1.8" + #define PKIX1_RSA_OAEP_P_SPECIFIED_OID "1.9" + +--- a/lib/x509/name_constraints.c ++++ b/lib/x509/name_constraints.c +@@ -516,7 +516,8 @@ static int validate_name_constraints_nod + if (type != GNUTLS_SAN_DNSNAME && type != GNUTLS_SAN_RFC822NAME && + type != GNUTLS_SAN_DN && type != GNUTLS_SAN_URI && + type != GNUTLS_SAN_IPADDRESS && +- type != GNUTLS_SAN_OTHERNAME_MSUSERPRINCIPAL) { ++ type != GNUTLS_SAN_OTHERNAME_MSUSERPRINCIPAL && ++ type != GNUTLS_SAN_OTHERNAME_SRV) { + return gnutls_assert_val(GNUTLS_E_X509_UNKNOWN_SAN); + } + +--- a/lib/x509/output.c ++++ b/lib/x509/output.c +@@ -121,6 +121,7 @@ static void print_name(gnutls_buffer_st + if ((type == GNUTLS_SAN_DNSNAME || type == GNUTLS_SAN_OTHERNAME_XMPP || + type == GNUTLS_SAN_OTHERNAME_KRB5PRINCIPAL || + type == GNUTLS_SAN_OTHERNAME_MSUSERPRINCIPAL || ++ type == GNUTLS_SAN_OTHERNAME_SRV || + type == GNUTLS_SAN_RFC822NAME || type == GNUTLS_SAN_URI) && + sname != NULL && strlen(sname) != name->size) { + adds(str, _("warning: SAN contains an embedded NUL, " +@@ -180,6 +181,11 @@ static void print_name(gnutls_buffer_st + name->size, NON_NULL(name->data)); + break; + ++ case GNUTLS_SAN_OTHERNAME_SRV: ++ addf(str, _("%sSRVName: %.*s\n"), prefix, name->size, ++ NON_NULL(name->data)); ++ break; ++ + default: + addf(str, _("%sUnknown name: "), prefix); + _gnutls_buffer_hexprint(str, name->data, name->size); +--- a/lib/x509/virt-san.c ++++ b/lib/x509/virt-san.c +@@ -45,6 +45,9 @@ static int san_othername_to_virtual(cons + memcmp(oid, MSUSER_PRINCIPAL_NAME_OID, + sizeof(MSUSER_PRINCIPAL_NAME_OID) - 1) == 0) + return GNUTLS_SAN_OTHERNAME_MSUSERPRINCIPAL; ++ else if ((unsigned)size == (sizeof(SRV_OID) - 1) && ++ memcmp(oid, SRV_OID, sizeof(SRV_OID) - 1) == 0) ++ return GNUTLS_SAN_OTHERNAME_SRV; + } + + return GNUTLS_SAN_OTHERNAME; +@@ -59,6 +62,8 @@ static const char *virtual_to_othername_ + return KRB5_PRINCIPAL_OID; + case GNUTLS_SAN_OTHERNAME_MSUSERPRINCIPAL: + return MSUSER_PRINCIPAL_NAME_OID; ++ case GNUTLS_SAN_OTHERNAME_SRV: ++ return SRV_OID; + default: + return NULL; + } +@@ -126,6 +131,15 @@ int _gnutls_alt_name_assign_virt_type(st + name->type = GNUTLS_SAN_OTHERNAME; + break; + ++ case GNUTLS_SAN_OTHERNAME_SRV: ++ ret = _gnutls_x509_encode_string(ASN1_ETYPE_IA5_STRING, ++ san->data, san->size, ++ &encoded); ++ if (ret < 0) ++ return gnutls_assert_val(ret); ++ name->san = _gnutls_steal_datum(&encoded); ++ break; ++ + default: + return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST); + } +@@ -187,6 +201,15 @@ int gnutls_x509_othername_to_virtual(con + othername->data, + othername->size, virt, 0); + if (ret < 0) { ++ gnutls_assert(); ++ return ret; ++ } ++ return 0; ++ case GNUTLS_SAN_OTHERNAME_SRV: ++ ret = _gnutls_x509_decode_string(ASN1_ETYPE_IA5_STRING, ++ othername->data, ++ othername->size, virt, 0); ++ if (ret < 0) { + gnutls_assert(); + return ret; + } +--- a/lib/x509/x509.c ++++ b/lib/x509/x509.c +@@ -1554,7 +1554,8 @@ inline static int is_type_printable(int + { + if (type == GNUTLS_SAN_DNSNAME || type == GNUTLS_SAN_RFC822NAME || + type == GNUTLS_SAN_URI || type == GNUTLS_SAN_OTHERNAME_XMPP || +- type == GNUTLS_SAN_OTHERNAME || type == GNUTLS_SAN_REGISTERED_ID) ++ type == GNUTLS_SAN_OTHERNAME_SRV || type == GNUTLS_SAN_OTHERNAME || ++ type == GNUTLS_SAN_REGISTERED_ID) + return 1; + else + return 0; diff --git a/meta/recipes-support/gnutls/gnutls/CVE-2026-42012-pre3.patch b/meta/recipes-support/gnutls/gnutls/CVE-2026-42012-pre3.patch new file mode 100644 index 0000000000..3dd9fe5a25 --- /dev/null +++ b/meta/recipes-support/gnutls/gnutls/CVE-2026-42012-pre3.patch @@ -0,0 +1,126 @@ +From 9f635788da50eb1285cae5c8d787b12bda01ae4d Mon Sep 17 00:00:00 2001 +From: Daiki Ueno +Date: Wed, 22 Jan 2025 07:45:46 +0900 +Subject: [PATCH] datum, mem, str: add helper functions to steal pointers + +This introduces 3 new inline functions, namely _gnutls_steal_datum, +_gnutls_steal_buffer, and _gnutls_steal_pointer, to return a copy of +data structure and reset the original pointer. Those would enable to +return a populated data structure upon success; otherwise free the +partially filled data structure in a single code path, e.g., + +```c + gnutls_datum_t tmp_result = { NULL, 0 }; + + // Calculate tmp_result + ... + if (error) + goto cleanup; + + // Propagate tmp_result to *result + *result = _gnutls_steal_datum(&tmp_result); + +cleanup: + _gnutls_free_datum(&tmp_result); + return ret; +``` + +Signed-off-by: Daiki Ueno +CVE: CVE-2026-42012 +Upstream-Status: Backport [https://gitlab.com/gnutls/gnutls/-/commit/9f635788da50eb1285cae5c8d787b12bda01ae4d] + +Signed-off-by: Jakub Szczudlo +--- + lib/datum.h | 11 +++++++++++ + lib/mem.h | 9 +++++++++ + lib/str.h | 23 +++++++++++++++-------- + 3 files changed, 35 insertions(+), 8 deletions(-) + +--- a/lib/datum.h ++++ b/lib/datum.h +@@ -68,4 +68,15 @@ inline static ATTRIBUTE_NONNULL() void _ + dat->size = 0; + } + ++inline static ATTRIBUTE_NONNULL() gnutls_datum_t ++ _gnutls_steal_datum(gnutls_datum_t *src) ++{ ++ gnutls_datum_t dst = *src; ++ ++ src->data = NULL; ++ src->size = 0; ++ ++ return dst; ++} ++ + #endif /* GNUTLS_LIB_DATUM_H */ +--- a/lib/mem.h ++++ b/lib/mem.h +@@ -33,6 +33,8 @@ + #include + #endif + ++#include "attribute.h" ++ + /* These realloc functions will return ptr if size==0, and will free + * the ptr if the new allocation failed. + */ +@@ -78,4 +80,11 @@ static inline void _gnutls_memory_mark_d + #endif + } + ++static inline ATTRIBUTE_NONNULL() void *_gnutls_steal_pointer(void **src) ++{ ++ void *dst = *src; ++ *src = NULL; ++ return dst; ++} ++ + #endif /* GNUTLS_LIB_MEM_H */ +--- a/lib/str.h ++++ b/lib/str.h +@@ -30,6 +30,7 @@ + #include "datum.h" + #include + #include "errors.h" ++#include "attribute.h" + + #ifdef HAVE_DCGETTEXT + #include "gettext.h" +@@ -97,6 +98,19 @@ inline static void _gnutls_buffer_reset( + buf->length = 0; + } + ++inline static ATTRIBUTE_NONNULL() gnutls_buffer_st ++ _gnutls_steal_buffer(gnutls_buffer_st *src) ++{ ++ gnutls_buffer_st dst = *src; ++ ++ src->allocd = NULL; ++ src->data = NULL; ++ src->max_length = 0; ++ src->length = 0; ++ ++ return dst; ++} ++ + int _gnutls_buffer_resize(gnutls_buffer_st *, size_t new_size); + + int _gnutls_buffer_append_str(gnutls_buffer_st *, const char *str); +@@ -161,15 +175,8 @@ int _gnutls_buffer_append_escape(gnutls_ + size_t data_size, const char *invalid_chars); + int _gnutls_buffer_unescape(gnutls_buffer_st *dest); + +-#ifndef __attribute__ +-/* This feature is available in gcc versions 2.5 and later. */ +-#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) +-#define __attribute__(Spec) /* empty */ +-#endif +-#endif +- + int _gnutls_buffer_append_printf(gnutls_buffer_st *dest, const char *fmt, ...) +- __attribute__((format(printf, 2, 3))); ++ ATTRIBUTE_FORMAT((printf, 2, 3)); + + void _gnutls_buffer_hexprint(gnutls_buffer_st *str, const void *data, + size_t len); diff --git a/meta/recipes-support/gnutls/gnutls/CVE-2026-42012.patch b/meta/recipes-support/gnutls/gnutls/CVE-2026-42012.patch new file mode 100644 index 0000000000..1f43efc122 --- /dev/null +++ b/meta/recipes-support/gnutls/gnutls/CVE-2026-42012.patch @@ -0,0 +1,48 @@ +From 8dcc6a1f48945997666ac9f10896819edd01a03b Mon Sep 17 00:00:00 2001 +From: Alexander Sosedkin +Date: Fri, 13 Mar 2026 17:02:07 +0100 +Subject: [PATCH] x509/hostname-verify: make URI/SRV SAN preclude CN fallback + +URI/SRV SAN did not suppress CN fallback as required by RFC 6125 6.4.4: +> a client MUST NOT seek a match for a reference identifier of CN-ID +> if the presented identifiers include a DNS-ID, *SRV-ID*, *URI-ID*, +> or any application-specific identifier types supported by the client. + +With this change, certificates containing URI or SRV SAN +no longer pass DNS hostname checks via CN fallback +to avoid potential misuse of such certificates +beyond their original purpose. + +Reported-by: Oleh Konko +Fixes: #1802 +Fixes: CVE-2026-42012 +Fixes: GNUTLS-SA-2026-04-29-7 +CVSS: 6.5 Medium CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N +Signed-off-by: Alexander Sosedkin +CVE: CVE-2026-42012 +Upstream-Status: Backport [https://gitlab.com/gnutls/gnutls/-/commit/8dcc6a1f48945997666ac9f10896819edd01a03b] + +Signed-off-by: Jakub Szczudlo +--- + lib/x509/hostname-verify.c | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +diff --git a/lib/x509/hostname-verify.c b/lib/x509/hostname-verify.c +index e7597ad3b0..d989bb1abc 100644 +--- a/lib/x509/hostname-verify.c ++++ b/lib/x509/hostname-verify.c +@@ -108,8 +108,9 @@ unsigned gnutls_x509_crt_check_ip(gnutls_x509_crt_t cert, + * that we do not fallback to CN-ID if we encounter a supported name + * type. + */ +-#define PRECLUDES_CN_FALLBACK(san) \ +- (san == GNUTLS_SAN_DNSNAME || san == GNUTLS_SAN_IPADDRESS) ++#define PRECLUDES_CN_FALLBACK(san) \ ++ (san == GNUTLS_SAN_DNSNAME || san == GNUTLS_SAN_IPADDRESS || \ ++ san == GNUTLS_SAN_URI || san == GNUTLS_SAN_OTHERNAME_SRV) + + /** + * gnutls_x509_crt_check_hostname2: +-- +GitLab + diff --git a/meta/recipes-support/gnutls/gnutls_3.8.4.bb b/meta/recipes-support/gnutls/gnutls_3.8.4.bb index 0eabc517ce..34d9603efa 100644 --- a/meta/recipes-support/gnutls/gnutls_3.8.4.bb +++ b/meta/recipes-support/gnutls/gnutls_3.8.4.bb @@ -46,6 +46,10 @@ SRC_URI = "https://www.gnupg.org/ftp/gcrypt/gnutls/v${SHRT_VER}/gnutls-${PV}.tar file://CVE-2026-42009_p1.patch \ file://CVE-2026-42009_p2.patch \ file://CVE-2026-3833.patch \ + file://CVE-2026-42012-pre1.patch \ + file://CVE-2026-42012-pre2.patch \ + file://CVE-2026-42012-pre3.patch \ + file://CVE-2026-42012.patch \ " SRC_URI[sha256sum] = "2bea4e154794f3f00180fa2a5c51fe8b005ac7a31cd58bd44cdfa7f36ebc3a9b"