diff --git a/builder/oracle/classic/config.go b/builder/oracle/classic/config.go
index a483c8e50..da3a76460 100644
--- a/builder/oracle/classic/config.go
+++ b/builder/oracle/classic/config.go
@@ -6,6 +6,7 @@ import (
 	"io/ioutil"
 	"net/url"
 	"os"
+	"regexp"
 	"time"
 
 	"github.com/hashicorp/packer/common"
@@ -94,6 +95,21 @@ func NewConfig(raws ...interface{}) (*Config, error) {
 		}
 	}
 
+	// Object names can contain only alphanumeric characters, hyphens, underscores, and periods
+	reValidObject := regexp.MustCompile("^[a-zA-Z0-9-._/]+$")
+	var objectValidation = []struct {
+		name  string
+		value string
+	}{
+		{"dest_image_list", c.DestImageList},
+		{"image_name", c.ImageName},
+	}
+	for _, ov := range objectValidation {
+		if !reValidObject.MatchString(ov.value) {
+			errs = packer.MultiErrorAppend(errs, fmt.Errorf("%s can contain only alphanumeric characters, hyphens, underscores, and periods.", ov.name))
+		}
+	}
+
 	if c.Attributes != "" && c.AttributesFile != "" {
 		errs = packer.MultiErrorAppend(errs, fmt.Errorf("Only one of user_data or user_data_file can be specified."))
 	} else if c.AttributesFile != "" {
diff --git a/builder/oracle/classic/config_test.go b/builder/oracle/classic/config_test.go
index 214365731..ff6bf2a00 100644
--- a/builder/oracle/classic/config_test.go
+++ b/builder/oracle/classic/config_test.go
@@ -2,6 +2,8 @@ package classic
 
 import (
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func testConfig() map[string]interface{} {
@@ -59,3 +61,27 @@ func TestValidationsIgnoresOptional(t *testing.T) {
 		t.Fatalf("Shouldn't care if ssh_username is missing: err: %#v", err.Error())
 	}
 }
+
+func TestConfigValidatesObjects(t *testing.T) {
+	var objectTests = []struct {
+		object string
+		valid  bool
+	}{
+		{"foo-BAR.0_9", true},
+		{"%", false},
+		{"Matt...?", false},
+		{"/Config-thing/myuser/myimage", true},
+	}
+	for _, s := range []string{"dest_image_list", "image_name"} {
+		for _, tt := range objectTests {
+			tc := testConfig()
+			tc[s] = tt.object
+			_, err := NewConfig(tc)
+			if tt.valid {
+				assert.NoError(t, err, tt.object)
+			} else {
+				assert.Error(t, err, tt.object)
+			}
+		}
+	}
+}