tests: add CVE crash vectors

tests/CMakeLists.txt

@@ -61,6 +61,7 @@ shell_test(ssml)
 shell_test(translate)
 shell_test(variants)
 shell_test(voices)
+shell_test(crash)
 
 # shell_test(windows-data)
 # shell_test(windows-installer)

tests/crash.test

@@ -0,0 +1,17 @@
+#!/bin/sh
+# include common script
+. "`dirname $0`/common"
+
+test_crash() {
+	TEST_NAME=$1
+
+	echo "testing CVE-${TEST_NAME}"
+	ESPEAK_DATA_PATH=`pwd` LD_LIBRARY_PATH=src:${LD_LIBRARY_PATH} \
+		$VALGRIND src/espeak-ng -f "$(dirname $0)/crash_vectors/${TEST_NAME}.txt" -w /dev/null || exit 1
+}
+
+test_crash cve-2023-49990
+test_crash cve-2023-49991
+test_crash cve-2023-49992
+test_crash cve-2023-49993
+test_crash cve-2023-49994

tests/crash_vectors/cve-2023-49990.txt

@@ -0,0 +1 @@
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tests/crash_vectors/cve-2023-49991.txt

@@ -0,0 +1 @@
+€¦
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tests/crash_vectors/cve-2023-49994.txt

@@ -0,0 +1 @@
+"[[-#,-	-1-2.
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--