encoding/asn1: unmarshal bool values correctly dealing with the ANY type

Fixes #68241

Change-Id: I1ee81aa50c2f39f535ad27309e855f19acb2f2ea
Reviewed-on: https://go-review.googlesource.com/c/go/+/595796
Auto-Submit: Roland Shoemaker <[email protected]>
Reviewed-by: David Chase <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Roland Shoemaker <[email protected]>

Author: callthingsoff

src/encoding/asn1/asn1.go

@@ -702,6 +702,8 @@ func parseField(v reflect.Value, bytes []byte, initOffset int, params fieldParam
 		if !t.isCompound && t.class == ClassUniversal {
 			innerBytes := bytes[offset : offset+t.length]
 			switch t.tag {
+			case TagBoolean:
+				result, err = parseBool(innerBytes)
 			case TagPrintableString:
 				result, err = parsePrintableString(innerBytes)
 			case TagNumericString:

src/encoding/asn1/marshal_test.go

@@ -311,6 +311,26 @@ func TestIssue11130(t *testing.T) {
 	}
 }
 
+func TestIssue68241(t *testing.T) {
+	for i, want := range []any{false, true} {
+		data, err := Marshal(want)
+		if err != nil {
+			t.Errorf("cannot Marshal: %v", err)
+			return
+		}
+
+		var got any
+		_, err = Unmarshal(data, &got)
+		if err != nil {
+			t.Errorf("cannot Unmarshal: %v", err)
+			return
+		}
+		if !reflect.DeepEqual(got, want) {
+			t.Errorf("#%d Unmarshal, got: %v, want: %v", i, got, want)
+		}
+	}
+}
+
 func BenchmarkMarshal(b *testing.B) {
 	b.ReportAllocs()