go: fix CVE-2024-24783

Upstream-Status: Backport be5b52bea6

(From OE-Core rev: b7d89fae22b317199b8f72978712075078a17005)

Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

meta/recipes-devtools/go/go-1.17.13.inc

@@ -68,6 +68,7 @@ SRC_URI = "https://golang.org/dl/go${PV}.src.tar.gz;name=main \
            file://CVE-2025-47907-pre-0002.patch \
            file://CVE-2025-47907.patch \
            file://CVE-2025-47906.patch \
+           file://CVE-2024-24783.patch \
            "
 SRC_URI[main.sha256sum] = "a1a48b23afb206f95e7bbaa9b898d965f90826f6f1d1fc0c1d784ada0cd300fd"
 

meta/recipes-devtools/go/go-1.21/CVE-2024-24783.patch

@@ -0,0 +1,83 @@
+From be5b52bea674190ef7de272664be6c7ae93ec5a0 Mon Sep 17 00:00:00 2001
+From: Roland Shoemaker <bracewell@google.com>
+Date: Thu, 18 Jan 2024 12:51:13 -0800
+Subject: [PATCH] [release-branch.go1.21] crypto/x509: make sure pub key is
+ non-nil before interface conversion
+
+alreadyInChain assumes all keys fit a interface which contains the
+Equal method (which they do), but this ignores that certificates may
+have a nil key when PublicKeyAlgorithm is UnknownPublicKeyAlgorithm. In
+this case alreadyInChain panics.
+
+Check that the key is non-nil as part of considerCandidate (we are never
+going to build a chain containing UnknownPublicKeyAlgorithm anyway).
+
+For #65390
+Fixes #65392
+Fixes CVE-2024-24783
+
+Change-Id: Ibdccc0a487e3368b6812be35daad2512220243f3
+Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/2137282
+Reviewed-by: Damien Neil <dneil@google.com>
+Run-TryBot: Roland Shoemaker <bracewell@google.com>
+Reviewed-by: Tatiana Bradley <tatianabradley@google.com>
+Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/2173774
+Reviewed-by: Roland Shoemaker <bracewell@google.com>
+Reviewed-by: Carlos Amedee <amedee@google.com>
+Reviewed-on: https://go-review.googlesource.com/c/go/+/569238
+Auto-Submit: Michael Knyszek <mknyszek@google.com>
+LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
+Reviewed-by: Carlos Amedee <carlos@golang.org>
+
+CVE: CVE-2024-24783
+Upstream-Status: Backport [https://github.com/golang/go/commit/be5b52bea674190ef7de272664be6c7ae93ec5a0]
+Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
+---
+ src/crypto/x509/verify.go      |  3 +++
+ src/crypto/x509/verify_test.go | 19 +++++++++++++++++++
+ 2 files changed, 22 insertions(+)
+
+diff --git a/src/crypto/x509/verify.go b/src/crypto/x509/verify.go
+index 9ef1146..3e95808 100644
+--- a/src/crypto/x509/verify.go
++++ b/src/crypto/x509/verify.go
+@@ -819,6 +819,9 @@ func (c *Certificate) buildChains(cache map[*Certificate][][]*Certificate, curre
+ 	)
+ 
+ 	considerCandidate := func(certType int, candidate *Certificate) {
++		if candidate.PublicKey == nil {
++			return
++		}
+ 		for _, cert := range currentChain {
+ 			if cert.Equal(candidate) {
+ 				return
+diff --git a/src/crypto/x509/verify_test.go b/src/crypto/x509/verify_test.go
+index 9954a67..9da39ca 100644
+--- a/src/crypto/x509/verify_test.go
++++ b/src/crypto/x509/verify_test.go
+@@ -1968,3 +1968,22 @@ func TestSystemRootsErrorUnwrap(t *testing.T) {
+ 		t.Error("errors.Is failed, wanted success")
+ 	}
+ }
++
++func TestVerifyNilPubKey(t *testing.T) {
++	c := &Certificate{
++		RawIssuer:      []byte{1, 2, 3},
++		AuthorityKeyId: []byte{1, 2, 3},
++	}
++	opts := &VerifyOptions{}
++	opts.Roots = NewCertPool()
++	r := &Certificate{
++		RawSubject:   []byte{1, 2, 3},
++		SubjectKeyId: []byte{1, 2, 3},
++	}
++	opts.Roots.AddCert(r)
++
++	_, err := c.buildChains(nil, []*Certificate{r}, nil, opts)
++	if _, ok := err.(UnknownAuthorityError); !ok {
++		t.Fatalf("buildChains returned unexpected error, got: %v, want %v", err, UnknownAuthorityError{})
++	}
++}
+-- 
+2.50.1
+