golang: fix CVE-2022-28327

Upstream-Status: Backport [https://github.com/golang/go/commit/7139e8b024604ab168b51b99c6e8168257a5bf58]
CVE: CVE-2022-28327
(From OE-Core rev: aab2a343be4b0b21dcaf22a7fbf77007d48c08d6)

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 37 insertions, 0 deletions

diff --git a/meta/recipes-devtools/go/go-1.14.inc b/meta/recipes-devtools/go/go-1.14.inc
index 525a3e77c5..6e596f4141 100644
--- a/meta/recipes-devtools/go/go-1.14.inc
+++ b/meta/recipes-devtools/go/go-1.14.inc
@@ -48,6 +48,7 @@ SRC_URI += "\
     file://CVE-2021-44716.patch \
     file://CVE-2022-24921.patch \
     file://CVE-2022-28131.patch \
+    file://CVE-2022-28327.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-2022-28327.patch b/meta/recipes-devtools/go/go-1.14/CVE-2022-28327.patch
new file mode 100644
index 0000000000..6361deec7d
--- /dev/null
+++ b/meta/recipes-devtools/go/go-1.14/CVE-2022-28327.patch
@@ -0,0 +1,36 @@
+From 34d9ab78568d63d8097911237897b188bdaba9c2 Mon Sep 17 00:00:00 2001
+From: Filippo Valsorda <filippo@golang.org>
+Date: Thu, 31 Mar 2022 12:31:58 -0400
+Subject: [PATCH] crypto/elliptic: tolerate zero-padded scalars in generic
+ P-256
+
+Upstream-Status: Backport [https://github.com/golang/go/commit/7139e8b024604ab168b51b99c6e8168257a5bf58]
+CVE: CVE-2022-28327
+Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
+
+
+Updates #52075
+Fixes #52076
+Fixes CVE-2022-28327
+
+Change-Id: I595a7514c9a0aa1b9c76aedfc2307e1124271f27
+Reviewed-on: https://go-review.googlesource.com/c/go/+/397136
+Trust: Filippo Valsorda <filippo@golang.org>
+Reviewed-by: Julie Qiu <julie@golang.org>
+---
+ src/crypto/elliptic/p256.go | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/crypto/elliptic/p256.go b/src/crypto/elliptic/p256.go
+index c23e414..787e3e7 100644
+--- a/src/crypto/elliptic/p256.go
++++ b/src/crypto/elliptic/p256.go
+@@ -51,7 +51,7 @@ func p256GetScalar(out *[32]byte, in []byte) {
+        n := new(big.Int).SetBytes(in)
+        var scalarBytes []byte
+ 
+-       if n.Cmp(p256Params.N) >= 0 {
++       if n.Cmp(p256Params.N) >= 0 || len(in) > len(out) {
+                n.Mod(n, p256Params.N)
+                scalarBytes = n.Bytes()
+        } else {