From patchwork Wed Jul 2 15:46:16 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Polampalli, Archana" X-Patchwork-Id: 66137 X-Patchwork-Delegate: steve@sakoman.com 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 F352DC83F05 for ; Wed, 2 Jul 2025 15:46:35 +0000 (UTC) Received: from mx0b-0064b401.pphosted.com (mx0b-0064b401.pphosted.com [205.220.178.238]) by mx.groups.io with SMTP id smtpd.web11.27310.1751471188242868163 for ; Wed, 02 Jul 2025 08:46:28 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=permerror, err=parse error for token &{10 18 %{ir}.%{v}.%{d}.spf.has.pphosted.com}: invalid domain name (domain: windriver.com, ip: 205.220.178.238, mailfrom: prvs=927893d721=archana.polampalli@windriver.com) Received: from pps.filterd (m0250811.ppops.net [127.0.0.1]) by mx0a-0064b401.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 5621RS61026746 for ; Wed, 2 Jul 2025 15:46:27 GMT Received: from ala-exchng02.corp.ad.wrs.com (ala-exchng02.wrs.com [147.11.82.254]) by mx0a-0064b401.pphosted.com (PPS) with ESMTPS id 47j5m1cmdh-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Wed, 02 Jul 2025 15:46:27 +0000 (GMT) Received: from ALA-EXCHNG02.corp.ad.wrs.com (147.11.82.254) by ALA-EXCHNG02.corp.ad.wrs.com (147.11.82.254) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.57; Wed, 2 Jul 2025 08:46:25 -0700 Received: from blr-linux-engg1.wrs.com (147.11.136.210) by ALA-EXCHNG02.corp.ad.wrs.com (147.11.82.254) with Microsoft SMTP Server id 15.1.2507.57 via Frontend Transport; Wed, 2 Jul 2025 08:46:24 -0700 From: To: Subject: [oe-core][scarthgap][PATCH 3/6] xwayland: fix CVE-2025-49177 Date: Wed, 2 Jul 2025 21:16:16 +0530 Message-ID: <20250702154619.3765505-3-archana.polampalli@windriver.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20250702154619.3765505-1-archana.polampalli@windriver.com> References: <20250702154619.3765505-1-archana.polampalli@windriver.com> MIME-Version: 1.0 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzAyMDEzMCBTYWx0ZWRfXz9sTPnp9wooU YXH0LXczLcIxKiWs6Xm25ToBHNYkOBxI7o1Bgpl5uBaB9oYYpAohIBTbFLJw+l6WDrdT2IugY2j b3pwNkPnYwjDXuvglnuDuSspUCeFSqP62gRQ4flgR0UQjPXMFSVfeXtty1k+aTsAPGn9rxgNCY+ 39q6qfH9DE7RsfQdzdmPcaR04lRRVUqEgwwBLndrc6Hgbd2kirE0Vc8Khmz+CJKGv83dmSpwhVz qwruWoaMIymhxkNHDLXXBflrWWSOAPkPkYtGAWDt96ubcpf7XQ2AwRZJfoi+9F+FYyhsAmsp+GX ySft9sKRywmVnNhmZnQALPcmz1Utwgecy4+PpKaFcQ9akcg+u7+1M+71o4Ez80Lfc+DQKf+QwGa +19Ra7+uag+FqzbeBae0blCZ5a1Az9GFK66Xjg0tdFwp5c23P4531X0znt0mB2JCzds2zdUT X-Authority-Analysis: v=2.4 cv=IOsCChvG c=1 sm=1 tr=0 ts=68655453 cx=c_pps a=K4BcnWQioVPsTJd46EJO2w==:117 a=K4BcnWQioVPsTJd46EJO2w==:17 a=Wb1JkmetP80A:10 a=e5mUnYsNAAAA:8 a=aR16PxjQAAAA:8 a=t7CeM3EgAAAA:8 a=20KFwNOVAAAA:8 a=D31QgfloAAAA:8 a=dEv3LceFkJjfwSMbmsYA:9 a=Vxmtnl_E_bksehYqCbjh:22 a=zbFvvTOBjyH4ze5LlUjX:22 a=FdTzh2GWekK77mhwV6Dw:22 a=I6paTPn9_Px6ARgSWtWf:22 X-Proofpoint-GUID: tcL7NM_pyCw46xc4JxCoYe2mPWatdHeC X-Proofpoint-ORIG-GUID: tcL7NM_pyCw46xc4JxCoYe2mPWatdHeC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.7,FMLib:17.12.80.40 definitions=2025-07-02_02,2025-07-02_02,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 clxscore=1015 priorityscore=1501 adultscore=0 spamscore=0 mlxscore=0 lowpriorityscore=0 mlxlogscore=999 malwarescore=0 suspectscore=0 impostorscore=0 bulkscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.21.0-2505280000 definitions=main-2507020130 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 02 Jul 2025 15:46:35 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/219845 From: Archana Polampalli A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests Signed-off-by: Archana Polampalli --- .../xwayland/xwayland/CVE-2025-49177.patch | 55 +++++++++++++++++++ .../xwayland/xwayland_23.2.5.bb | 1 + 2 files changed, 56 insertions(+) create mode 100644 meta/recipes-graphics/xwayland/xwayland/CVE-2025-49177.patch diff --git a/meta/recipes-graphics/xwayland/xwayland/CVE-2025-49177.patch b/meta/recipes-graphics/xwayland/xwayland/CVE-2025-49177.patch new file mode 100644 index 0000000000..56ae1de800 --- /dev/null +++ b/meta/recipes-graphics/xwayland/xwayland/CVE-2025-49177.patch @@ -0,0 +1,55 @@ +From ab02fb96b1c701c3bb47617d965522c34befa6af Mon Sep 17 00:00:00 2001 +From: Olivier Fourdan +Date: Mon, 28 Apr 2025 10:05:36 +0200 +Subject: [PATCH] xfixes: Check request length for SetClientDisconnectMode + +The handler of XFixesSetClientDisconnectMode does not check the client +request length. + +A client could send a shorter request and read data from a former +request. + +Fix the issue by checking the request size matches. + +CVE-2025-49177 + +This issue was discovered by Nils Emmerich and +reported by Julian Suleder via ERNW Vulnerability Disclosure. + +Fixes: e167299f6 - xfixes: Add ClientDisconnectMode +Signed-off-by: Olivier Fourdan +Reviewed-by: Peter Hutterer +Part-of: + +CVE: CVE-2025-49177 + +Upstream-Status: Backport [https://gitlab.freedesktop.org/xorg/xserver/-/commit/ab02fb96b1c701c3bb47617d965522c34befa6af] + +Signed-off-by: Archana Polampalli +--- + xfixes/disconnect.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +diff --git a/xfixes/disconnect.c b/xfixes/disconnect.c +index 28aac45..d6da1f9 100644 +--- a/xfixes/disconnect.c ++++ b/xfixes/disconnect.c +@@ -67,6 +67,7 @@ ProcXFixesSetClientDisconnectMode(ClientPtr client) + ClientDisconnectPtr pDisconnect = GetClientDisconnect(client); + + REQUEST(xXFixesSetClientDisconnectModeReq); ++ REQUEST_SIZE_MATCH(xXFixesSetClientDisconnectModeReq); + + pDisconnect->disconnect_mode = stuff->disconnect_mode; + +@@ -80,7 +81,7 @@ SProcXFixesSetClientDisconnectMode(ClientPtr client) + + swaps(&stuff->length); + +- REQUEST_AT_LEAST_SIZE(xXFixesSetClientDisconnectModeReq); ++ REQUEST_SIZE_MATCH(xXFixesSetClientDisconnectModeReq); + + swapl(&stuff->disconnect_mode); + +-- +2.40.0 diff --git a/meta/recipes-graphics/xwayland/xwayland_23.2.5.bb b/meta/recipes-graphics/xwayland/xwayland_23.2.5.bb index 72396dcd40..5ed8ca0365 100644 --- a/meta/recipes-graphics/xwayland/xwayland_23.2.5.bb +++ b/meta/recipes-graphics/xwayland/xwayland_23.2.5.bb @@ -27,6 +27,7 @@ SRC_URI = "https://www.x.org/archive/individual/xserver/xwayland-${PV}.tar.xz \ file://CVE-2025-49175.patch \ file://CVE-2025-49176-0001.patch \ file://CVE-2025-49176-0002.patch \ + file://CVE-2025-49177.patch \ " SRC_URI[sha256sum] = "33ec7ff2687a59faaa52b9b09aa8caf118e7ecb6aed8953f526a625ff9f4bd90"