From patchwork Thu Oct 12 13:33:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Polampalli, Archana" X-Patchwork-Id: 32034 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 25BA5CDB46E for ; Thu, 12 Oct 2023 13:33:42 +0000 (UTC) Received: from mx0b-0064b401.pphosted.com (mx0b-0064b401.pphosted.com [205.220.178.238]) by mx.groups.io with SMTP id smtpd.web10.11301.1697117613993234582 for ; Thu, 12 Oct 2023 06:33:34 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@windriver.com header.s=PPS06212021 header.b=hDVf1+yy; 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=86491d060b=archana.polampalli@windriver.com) Received: from pps.filterd (m0250811.ppops.net [127.0.0.1]) by mx0a-0064b401.pphosted.com (8.17.1.22/8.17.1.22) with ESMTP id 39C5b3J4014983 for ; Thu, 12 Oct 2023 13:33:33 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=windriver.com; h=from:to:subject:date:message-id:mime-version :content-transfer-encoding:content-type; s=PPS06212021; bh=A/qWQ SQ1C1FxDhGWOV6lBLOj2dSxsX0k0+rsaoXJ4eI=; b=hDVf1+yyVIcx5Yvk7X/S0 QP8YCPRsPXlYkPBDojoExJ4Ip8F92YTwrhPobf2vEe704Iy9VCCIZFJf/JAQ/w2H SlYpX/OLPTaldxmGgJbBuQUbDQV8A+TtFhlke1wzecHqIyP0NN4Lp0xv1Asks5Np z3cfWkmhPAINdAwROnEvEF9le7u0j1rn5thqd/0T4OiscTjq6UIMOPxvBjm8Sgs1 Xu16ZYnVKjjuCn+oNoZjRDIFurce8hGpD3b1oy/ri5k/oVl76yrgCNqL2Fyb7/+V vvNsSN6tGjLULposmQ9pQNoEWAsVRwagcgtxFIOa2rLas4DJc4GfTd/bHT4FzGQ8 A== Received: from ala-exchng01.corp.ad.wrs.com (ala-exchng01.wrs.com [147.11.82.252]) by mx0a-0064b401.pphosted.com (PPS) with ESMTPS id 3tnht89f1v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Thu, 12 Oct 2023 13:33:33 +0000 (GMT) Received: from blr-linux-engg1.wrs.com (147.11.136.210) by ala-exchng01.corp.ad.wrs.com (147.11.82.252) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.32; Thu, 12 Oct 2023 06:33:29 -0700 From: apolampa To: Subject: [oe-core][mickledore][PATCH 1/2] curl: fix CVE-2023-38545 Date: Thu, 12 Oct 2023 13:33:16 +0000 Message-ID: <20231012133317.1092301-1-archana.polampalli@windriver.com> X-Mailer: git-send-email 2.40.0 MIME-Version: 1.0 X-Originating-IP: [147.11.136.210] X-ClientProxiedBy: ala-exchng01.corp.ad.wrs.com (147.11.82.252) To ala-exchng01.corp.ad.wrs.com (147.11.82.252) X-Proofpoint-GUID: E0upGi3EfV9HSlEufdG8uHFmIohhLNKj X-Proofpoint-ORIG-GUID: E0upGi3EfV9HSlEufdG8uHFmIohhLNKj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-10-12_05,2023-10-12_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 lowpriorityscore=0 spamscore=0 bulkscore=0 mlxscore=0 malwarescore=0 suspectscore=0 clxscore=1015 mlxlogscore=999 phishscore=0 priorityscore=1501 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2309180000 definitions=main-2310120111 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 ; Thu, 12 Oct 2023 13:33:42 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/188998 From: Archana Polampalli This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy handshake. Signed-off-by: Archana Polampalli --- .../curl/curl/CVE-2023-38545.patch | 133 ++++++++++++++++++ meta/recipes-support/curl/curl_8.0.1.bb | 1 + 2 files changed, 134 insertions(+) create mode 100644 meta/recipes-support/curl/curl/CVE-2023-38545.patch diff --git a/meta/recipes-support/curl/curl/CVE-2023-38545.patch b/meta/recipes-support/curl/curl/CVE-2023-38545.patch new file mode 100644 index 0000000000..b90677fa5f --- /dev/null +++ b/meta/recipes-support/curl/curl/CVE-2023-38545.patch @@ -0,0 +1,133 @@ +From fb4415d8aee6c1045be932a34fe6107c2f5ed147 Mon Sep 17 00:00:00 2001 +From: Jay Satiro +Date: Wed, 11 Oct 2023 07:34:19 +0200 +Subject: [PATCH] socks: return error if hostname too long for remote resolve + +Prior to this change the state machine attempted to change the remote +resolve to a local resolve if the hostname was longer than 255 +characters. Unfortunately that did not work as intended and caused a +security issue. + +Bug: https://curl.se/docs/CVE-2023-38545.html + +Upstream-Status: Backport [https://github.com/curl/curl/commit/fb4415d8aee6c1045be932a34fe6107c2f5ed147] +CVE: CVE-2023-38545 +Signed-off-by: Archana Polampalli +--- + lib/socks.c | 8 +++--- + tests/data/Makefile.inc | 2 +- + tests/data/test722 | 64 +++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 69 insertions(+), 5 deletions(-) + create mode 100644 tests/data/test722 + +diff --git a/lib/socks.c b/lib/socks.c +index 95c2b00..8cf694d 100644 +--- a/lib/socks.c ++++ b/lib/socks.c +@@ -588,9 +588,9 @@ static CURLproxycode do_SOCKS5(struct Curl_cfilter *cf, + + /* RFC1928 chapter 5 specifies max 255 chars for domain name in packet */ + if(!socks5_resolve_local && hostname_len > 255) { +- infof(data, "SOCKS5: server resolving disabled for hostnames of " +- "length > 255 [actual len=%zu]", hostname_len); +- socks5_resolve_local = TRUE; ++ failf(data, "SOCKS5: the destination hostname is too long to be " ++ "resolved remotely by the proxy."); ++ return CURLPX_LONG_HOSTNAME; + } + + if(auth & ~(CURLAUTH_BASIC | CURLAUTH_GSSAPI)) +@@ -904,7 +904,7 @@ static CURLproxycode do_SOCKS5(struct Curl_cfilter *cf, + } + else { + socksreq[len++] = 3; +- socksreq[len++] = (char) hostname_len; /* one byte address length */ ++ socksreq[len++] = (unsigned char) hostname_len; /* one byte length */ + memcpy(&socksreq[len], sx->hostname, hostname_len); /* w/o NULL */ + len += hostname_len; + } +diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc +index 7ed03a2..643c9fe 100644 +--- a/tests/data/Makefile.inc ++++ b/tests/data/Makefile.inc +@@ -100,7 +100,7 @@ test679 test680 test681 test682 test683 test684 test685 test686 \ + \ + test700 test701 test702 test703 test704 test705 test706 test707 test708 \ + test709 test710 test711 test712 test713 test714 test715 test716 test717 \ +-test718 test719 test720 test721 \ ++test718 test719 test720 test721 test722 \ + \ + test800 test801 test802 test803 test804 test805 test806 test807 test808 \ + test809 test810 test811 test812 test813 test814 test815 test816 test817 \ +diff --git a/tests/data/test722 b/tests/data/test722 +new file mode 100644 +index 0000000..05bcf28 +--- /dev/null ++++ b/tests/data/test722 +@@ -0,0 +1,64 @@ ++ ++ ++ ++HTTP ++HTTP GET ++SOCKS5 ++SOCKS5h ++followlocation ++ ++ ++ ++# ++# Server-side ++ ++# The hostname in this redirect is 256 characters and too long (> 255) for ++# SOCKS5 remote resolve. curl must return error CURLE_PROXY in this case. ++ ++HTTP/1.1 301 Moved Permanently ++Location: http://AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA/ ++Content-Length: 0 ++Connection: close ++ ++ ++ ++ ++# ++# Client-side ++ ++ ++proxy ++ ++ ++http ++socks5 ++ ++ ++SOCKS5h with HTTP redirect to hostname too long ++ ++ ++--no-progress-meter --location --proxy socks5h://%HOSTIP:%SOCKSPORT http://%HOSTIP:%HTTPPORT/%TESTNUMBER ++ ++ ++ ++# ++# Verify data after the test has been "shot" ++ ++ ++GET /%TESTNUMBER HTTP/1.1 ++Host: %HOSTIP:%HTTPPORT ++User-Agent: curl/%VERSION ++Accept: */* ++ ++ ++ ++97 ++ ++# the error message is verified because error code CURLE_PROXY (97) may be ++# returned for any number of reasons and we need to make sure it is ++# specifically for the reason below so that we know the check is working. ++ ++curl: (97) SOCKS5: the destination hostname is too long to be resolved remotely by the proxy. ++ ++ ++ +-- +2.40.0 diff --git a/meta/recipes-support/curl/curl_8.0.1.bb b/meta/recipes-support/curl/curl_8.0.1.bb index 708f622fe1..bdffe7be34 100644 --- a/meta/recipes-support/curl/curl_8.0.1.bb +++ b/meta/recipes-support/curl/curl_8.0.1.bb @@ -19,6 +19,7 @@ SRC_URI = " \ file://CVE-2023-28321.patch \ file://CVE-2023-32001.patch \ file://CVE-2023-28320-fol1.patch \ + file://CVE-2023-38545.patch \ " SRC_URI[sha256sum] = "0a381cd82f4d00a9a334438b8ca239afea5bfefcfa9a1025f2bf118e79e0b5f0"