From patchwork Wed Jul 26 04:37:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Vivek Kumbhar X-Patchwork-Id: 27926 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 D865DC0015E for ; Wed, 26 Jul 2023 04:37:57 +0000 (UTC) Received: from mail-pg1-f181.google.com (mail-pg1-f181.google.com [209.85.215.181]) by mx.groups.io with SMTP id smtpd.web11.4338.1690346271618475991 for ; Tue, 25 Jul 2023 21:37:51 -0700 Authentication-Results: mx.groups.io; dkim=pass header.i=@mvista.com header.s=google header.b=KSacOpn6; spf=pass (domain: mvista.com, ip: 209.85.215.181, mailfrom: vkumbhar@mvista.com) Received: by mail-pg1-f181.google.com with SMTP id 41be03b00d2f7-563dae89bc9so537213a12.2 for ; Tue, 25 Jul 2023 21:37:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mvista.com; s=google; t=1690346270; x=1690951070; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=fzF0CCLOCNA3wfobGNpdoi2sQ9rRYZvcuWw/aZbmBSo=; b=KSacOpn6d/ml0NrJF92gkZ3b++maNKB/rrHGEqfuN/TSjDexSuSR8xg4pG0OnAW/b2 ZHL5H1O8HBQ4HjAK1YcAH+L+tqmXZpEn8sj4Q33BTZSwHzTzp1Ltwgo1TRFnkwBQUs5M FiJsCOfNBWsXfvWw7wkqHOolu0r9icq4s6afo= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690346270; x=1690951070; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=fzF0CCLOCNA3wfobGNpdoi2sQ9rRYZvcuWw/aZbmBSo=; b=J7fk3rzzq4q51GZYWEC51TWwBPjWLfbY9lszzUF8SjcyIlUohbo6eOQyaP98+8nvHU P5+0OmynqJmP6YYGd2Yw5UFGmsYn+DQVFoIR3Fpkb1eikF/zYH7iD3Jyx88iIGBTIDSm Ar2vjuPGXM7gLwNqcgF18lrqtBXSu9yw0+SRf9sPiasG/0UcByCskcSlgm814kDudI3l emqEiUQwVaifKC6VPSgH6bNTTDFGiu3hQ939Cwt3lEoJqJ7kudmdNkfKJcIxuhB3YDUm t0x5SZOJa0mVhTdo/7yQB7k1jtZ8I8QQSIrte1PFpGEumioxj0Jku6mLw1Jk5v3Ia6jt H7Mg== X-Gm-Message-State: ABy/qLaFjJzT8xnwA3OmVjmsRD8oehwGkghNEo29X0GOAOZ9tVdeafFo TMWpLHo1RXW84688D/5+deGtA370EFz5FBOws+Y= X-Google-Smtp-Source: APBJJlHZMELLwh4sgSv3kiHlmFz1jPC1neP0tNl0/lqidug04DWMYMw5dBsndIgeSJ5aMViLmtRJPg== X-Received: by 2002:a05:6a20:2450:b0:126:81e0:49dd with SMTP id t16-20020a056a20245000b0012681e049ddmr848922pzc.14.1690346270241; Tue, 25 Jul 2023 21:37:50 -0700 (PDT) Received: from vkumbhar-Latitude-3400.mvista.com ([115.96.166.134]) by smtp.googlemail.com with ESMTPSA id d6-20020a170902cec600b001aadd0d7364sm11918530plg.83.2023.07.25.21.37.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Jul 2023 21:37:49 -0700 (PDT) From: Vivek Kumbhar To: openembedded-core@lists.openembedded.org Cc: Vivek Kumbhar Subject: [OE-core][kirkstone][PATCH] go: fix CVE-2023-29406 net/http insufficient sanitization of Host header Date: Wed, 26 Jul 2023 10:07:33 +0530 Message-Id: <20230726043733.1979925-1-vkumbhar@mvista.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 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, 26 Jul 2023 04:37:57 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/184856 Signed-off-by: Vivek Kumbhar --- meta/recipes-devtools/go/go-1.17.13.inc | 1 + .../go/go-1.18/CVE-2023-29406.patch | 210 ++++++++++++++++++ 2 files changed, 211 insertions(+) create mode 100644 meta/recipes-devtools/go/go-1.18/CVE-2023-29406.patch diff --git a/meta/recipes-devtools/go/go-1.17.13.inc b/meta/recipes-devtools/go/go-1.17.13.inc index 73921852fc..36904a92fb 100644 --- a/meta/recipes-devtools/go/go-1.17.13.inc +++ b/meta/recipes-devtools/go/go-1.17.13.inc @@ -36,6 +36,7 @@ SRC_URI += "\ file://CVE-2023-29405.patch \ file://CVE-2023-29402.patch \ file://CVE-2023-29400.patch \ + file://CVE-2023-29406.patch \ " SRC_URI[main.sha256sum] = "a1a48b23afb206f95e7bbaa9b898d965f90826f6f1d1fc0c1d784ada0cd300fd" diff --git a/meta/recipes-devtools/go/go-1.18/CVE-2023-29406.patch b/meta/recipes-devtools/go/go-1.18/CVE-2023-29406.patch new file mode 100644 index 0000000000..a326cda5c4 --- /dev/null +++ b/meta/recipes-devtools/go/go-1.18/CVE-2023-29406.patch @@ -0,0 +1,210 @@ +From 5fa6923b1ea891400153d04ddf1545e23b40041b Mon Sep 17 00:00:00 2001 +From: Damien Neil +Date: Wed, 28 Jun 2023 13:20:08 -0700 +Subject: [PATCH] [release-branch.go1.19] net/http: validate Host header before + sending + +Verify that the Host header we send is valid. +Avoids surprising behavior such as a Host of "go.dev\r\nX-Evil:oops" +adding an X-Evil header to HTTP/1 requests. + +Add a test, skip the test for HTTP/2. HTTP/2 is not vulnerable to +header injection in the way HTTP/1 is, but x/net/http2 doesn't validate +the header and will go into a retry loop when the server rejects it. +CL 506995 adds the necessary validation to x/net/http2. + +Updates #60374 +Fixes #61075 +For CVE-2023-29406 + +Change-Id: I05cb6866a9bead043101954dfded199258c6dd04 +Reviewed-on: https://go-review.googlesource.com/c/go/+/506996 +Reviewed-by: Tatiana Bradley +TryBot-Result: Gopher Robot +Run-TryBot: Damien Neil +(cherry picked from commit 499458f7ca04087958987a33c2703c3ef03e27e2) +Reviewed-on: https://go-review.googlesource.com/c/go/+/507358 +Run-TryBot: Tatiana Bradley +Reviewed-by: Roland Shoemaker + +Upstream-Status: Backport [https://github.com/golang/go/commit/5fa6923b1ea891400153d04ddf1545e23b40041b] +CVE: CVE-2023-29406 +Signed-off-by: Vivek Kumbhar +--- + src/net/http/http_test.go | 29 ---------------------- + src/net/http/request.go | 45 ++++++++-------------------------- + src/net/http/request_test.go | 11 ++------- + src/net/http/transport_test.go | 18 ++++++++++++++ + 4 files changed, 30 insertions(+), 73 deletions(-) + +diff --git a/src/net/http/http_test.go b/src/net/http/http_test.go +index 0d92fe5..f03272a 100644 +--- a/src/net/http/http_test.go ++++ b/src/net/http/http_test.go +@@ -48,35 +48,6 @@ func TestForeachHeaderElement(t *testing.T) { + } + } + +-func TestCleanHost(t *testing.T) { +- tests := []struct { +- in, want string +- }{ +- {"www.google.com", "www.google.com"}, +- {"www.google.com foo", "www.google.com"}, +- {"www.google.com/foo", "www.google.com"}, +- {" first character is a space", ""}, +- {"[1::6]:8080", "[1::6]:8080"}, +- +- // Punycode: +- {"гофер.рф/foo", "xn--c1ae0ajs.xn--p1ai"}, +- {"bücher.de", "xn--bcher-kva.de"}, +- {"bücher.de:8080", "xn--bcher-kva.de:8080"}, +- // Verify we convert to lowercase before punycode: +- {"BÜCHER.de", "xn--bcher-kva.de"}, +- {"BÜCHER.de:8080", "xn--bcher-kva.de:8080"}, +- // Verify we normalize to NFC before punycode: +- {"gophér.nfc", "xn--gophr-esa.nfc"}, // NFC input; no work needed +- {"goph\u0065\u0301r.nfd", "xn--gophr-esa.nfd"}, // NFD input +- } +- for _, tt := range tests { +- got := cleanHost(tt.in) +- if tt.want != got { +- t.Errorf("cleanHost(%q) = %q, want %q", tt.in, got, tt.want) +- } +- } +-} +- + // Test that cmd/go doesn't link in the HTTP server. + // + // This catches accidental dependencies between the HTTP transport and +diff --git a/src/net/http/request.go b/src/net/http/request.go +index 09cb0c7..2f4e740 100644 +--- a/src/net/http/request.go ++++ b/src/net/http/request.go +@@ -17,7 +17,6 @@ import ( + "io" + "mime" + "mime/multipart" +- "net" + "net/http/httptrace" + "net/http/internal/ascii" + "net/textproto" +@@ -27,6 +26,7 @@ import ( + "strings" + "sync" + ++ "golang.org/x/net/http/httpguts" + "golang.org/x/net/idna" + ) + +@@ -568,12 +568,19 @@ func (r *Request) write(w io.Writer, usingProxy bool, extraHeaders Header, waitF + // is not given, use the host from the request URL. + // + // Clean the host, in case it arrives with unexpected stuff in it. +- host := cleanHost(r.Host) ++ host := r.Host + if host == "" { + if r.URL == nil { + return errMissingHost + } +- host = cleanHost(r.URL.Host) ++ host = r.URL.Host ++ } ++ host, err = httpguts.PunycodeHostPort(host) ++ if err != nil { ++ return err ++ } ++ if !httpguts.ValidHostHeader(host) { ++ return errors.New("http: invalid Host header") + } + + // According to RFC 6874, an HTTP client, proxy, or other +@@ -730,38 +737,6 @@ func idnaASCII(v string) (string, error) { + return idna.Lookup.ToASCII(v) + } + +-// cleanHost cleans up the host sent in request's Host header. +-// +-// It both strips anything after '/' or ' ', and puts the value +-// into Punycode form, if necessary. +-// +-// Ideally we'd clean the Host header according to the spec: +-// https://tools.ietf.org/html/rfc7230#section-5.4 (Host = uri-host [ ":" port ]") +-// https://tools.ietf.org/html/rfc7230#section-2.7 (uri-host -> rfc3986's host) +-// https://tools.ietf.org/html/rfc3986#section-3.2.2 (definition of host) +-// But practically, what we are trying to avoid is the situation in +-// issue 11206, where a malformed Host header used in the proxy context +-// would create a bad request. So it is enough to just truncate at the +-// first offending character. +-func cleanHost(in string) string { +- if i := strings.IndexAny(in, " /"); i != -1 { +- in = in[:i] +- } +- host, port, err := net.SplitHostPort(in) +- if err != nil { // input was just a host +- a, err := idnaASCII(in) +- if err != nil { +- return in // garbage in, garbage out +- } +- return a +- } +- a, err := idnaASCII(host) +- if err != nil { +- return in // garbage in, garbage out +- } +- return net.JoinHostPort(a, port) +-} +- + // removeZone removes IPv6 zone identifier from host. + // E.g., "[fe80::1%en0]:8080" to "[fe80::1]:8080" + func removeZone(host string) string { +diff --git a/src/net/http/request_test.go b/src/net/http/request_test.go +index fac12b7..368e87a 100644 +--- a/src/net/http/request_test.go ++++ b/src/net/http/request_test.go +@@ -776,15 +776,8 @@ func TestRequestBadHost(t *testing.T) { + } + req.Host = "foo.com with spaces" + req.URL.Host = "foo.com with spaces" +- req.Write(logWrites{t, &got}) +- want := []string{ +- "GET /after HTTP/1.1\r\n", +- "Host: foo.com\r\n", +- "User-Agent: " + DefaultUserAgent + "\r\n", +- "\r\n", +- } +- if !reflect.DeepEqual(got, want) { +- t.Errorf("Writes = %q\n Want = %q", got, want) ++ if err := req.Write(logWrites{t, &got}); err == nil { ++ t.Errorf("Writing request with invalid Host: succeded, want error") + } + } + +diff --git a/src/net/http/transport_test.go b/src/net/http/transport_test.go +index eeaa492..58f12af 100644 +--- a/src/net/http/transport_test.go ++++ b/src/net/http/transport_test.go +@@ -6512,3 +6512,21 @@ func TestCancelRequestWhenSharingConnection(t *testing.T) { + close(r2c) + wg.Wait() + } ++ ++func TestRequestSanitization(t *testing.T) { ++ setParallel(t) ++ defer afterTest(t) ++ ++ ts := newClientServerTest(t, h1Mode, HandlerFunc(func(rw ResponseWriter, req *Request) { ++ if h, ok := req.Header["X-Evil"]; ok { ++ t.Errorf("request has X-Evil header: %q", h) ++ } ++ })).ts ++ defer ts.Close() ++ req, _ := NewRequest("GET", ts.URL, nil) ++ req.Host = "go.dev\r\nX-Evil:evil" ++ resp, _ := ts.Client().Do(req) ++ if resp != nil { ++ resp.Body.Close() ++ } ++} +-- +2.25.1