go: Security fix CVE-2023-24540

Upstream-Status: Backport [https://github.com/golang/go/commit/ce7bd33345416e6d8cac901792060591cafc2797]

(From OE-Core rev: e569586ac9095d344967c5b9c4bfb07f70948936)

Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

2 files changed, 91 insertions, 0 deletions

diff --git a/meta/recipes-devtools/go/go-1.14.inc b/meta/recipes-devtools/go/go-1.14.inc
index d0fbde9cae..2c500e8331 100644
--- a/meta/recipes-devtools/go/go-1.14.inc
+++ b/meta/recipes-devtools/go/go-1.14.inc
@@ -62,6 +62,7 @@ SRC_URI += "\
     file://CVE-2023-24538-2.patch \
     file://CVE-2023-24538-3.patch \
     file://CVE-2023-24539.patch \
+    file://CVE-2023-24540.patch \
 "
 
 SRC_URI_append_libc-musl = " file://0009-ld-replace-glibc-dynamic-linker-with-musl.patch"
diff --git a/meta/recipes-devtools/go/go-1.14/CVE-2023-24540.patch b/meta/recipes-devtools/go/go-1.14/CVE-2023-24540.patch
new file mode 100644
index 0000000000..799a0dfcda
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.14/CVE-2023-24540.patch
@@ -0,0 +1,90 @@
+From ce7bd33345416e6d8cac901792060591cafc2797 Mon Sep 17 00:00:00 2001
+From: Roland Shoemaker <bracewell@google.com>
+Date: Tue, 11 Apr 2023 16:27:43 +0100
+Subject: [PATCH] [release-branch.go1.19] html/template: handle all JS
+ whitespace characters
+
+Rather than just a small set. Character class as defined by \s [0].
+
+Thanks to Juho Nurminen of Mattermost for reporting this.
+
+For #59721
+Fixes  #59813
+Fixes CVE-2023-24540
+
+[0] https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions/Character_Classes
+
+Change-Id: I56d4fa1ef08125b417106ee7dbfb5b0923b901ba
+Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1821459
+Reviewed-by: Julie Qiu <julieqiu@google.com>
+Run-TryBot: Roland Shoemaker <bracewell@google.com>
+Reviewed-by: Damien Neil <dneil@google.com>
+Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1851497
+Run-TryBot: Damien Neil <dneil@google.com>
+Reviewed-by: Roland Shoemaker <bracewell@google.com>
+Reviewed-on: https://go-review.googlesource.com/c/go/+/491355
+Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
+Reviewed-by: Carlos Amedee <carlos@golang.org>
+TryBot-Bypass: Carlos Amedee <carlos@golang.org>
+Run-TryBot: Carlos Amedee <carlos@golang.org>
+
+Upstream-Status: Backport [https://github.com/golang/go/commit/ce7bd33345416e6d8cac901792060591cafc2797]
+CVE: CVE-2023-24540
+Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
+---
+ src/html/template/js.go      |  8 +++++++-
+ src/html/template/js_test.go | 11 +++++++----
+ 2 files changed, 14 insertions(+), 5 deletions(-)
+
+diff --git a/src/html/template/js.go b/src/html/template/js.go
+index fe7054efe5cd8..4e05c1455723f 100644
+--- a/src/html/template/js.go
++++ b/src/html/template/js.go
+@@ -13,6 +13,11 @@ import (
+        "unicode/utf8"
+ )
+ 
++// jsWhitespace contains all of the JS whitespace characters, as defined
++// by the \s character class.
++// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_expressions/Character_classes.
++const jsWhitespace = "\f\n\r\t\v\u0020\u00a0\u1680\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u2028\u2029\u202f\u205f\u3000\ufeff"
++
+ // nextJSCtx returns the context that determines whether a slash after the
+ // given run of tokens starts a regular expression instead of a division
+ // operator: / or /=.
+@@ -26,7 +31,8 @@ import (
+ // JavaScript 2.0 lexical grammar and requires one token of lookbehind:
+ // https://www.mozilla.org/js/language/js20-2000-07/rationale/syntax.html
+ func nextJSCtx(s []byte, preceding jsCtx) jsCtx {
+-       s = bytes.TrimRight(s, "\t\n\f\r \u2028\u2029")
++       // Trim all JS whitespace characters
++       s = bytes.TrimRight(s, jsWhitespace)
+        if len(s) == 0 {
+                return preceding
+        }
+diff --git a/src/html/template/js_test.go b/src/html/template/js_test.go
+index e07c695f7a77d..e52180cc113b5 100644
+--- a/src/html/template/js_test.go
++++ b/src/html/template/js_test.go
+@@ -81,14 +81,17 @@ func TestNextJsCtx(t *testing.T) {
+                {jsCtxDivOp, "0"},
+                // Dots that are part of a number are div preceders.
+                {jsCtxDivOp, "0."},
++               // Some JS interpreters treat NBSP as a normal space, so
++               // we must too in order to properly escape things.
++               {jsCtxRegexp, "=\u00A0"},
+        }
+ 
+        for _, test := range tests {
+-               if nextJSCtx([]byte(test.s), jsCtxRegexp) != test.jsCtx {
+-                       t.Errorf("want %s got %q", test.jsCtx, test.s)
++               if ctx := nextJSCtx([]byte(test.s), jsCtxRegexp); ctx != test.jsCtx {
++                       t.Errorf("%q: want %s got %s", test.s, test.jsCtx, ctx)
+                }
+-               if nextJSCtx([]byte(test.s), jsCtxDivOp) != test.jsCtx {
+-                       t.Errorf("want %s got %q", test.jsCtx, test.s)
++               if ctx := nextJSCtx([]byte(test.s), jsCtxDivOp); ctx != test.jsCtx {
++                       t.Errorf("%q: want %s got %s", test.s, test.jsCtx, ctx)
+                }
+        }
+