###### JerryScript revision
0a3aa0f4

###### Build platform
Ubuntu 18.04.5 LTS(Linux 4.15.0-119-generic x86_64)

###### Build steps
```
./tools/build.py --clean --debug --compile-flag=-fsanitize=address \
--compile-flag=-m32 --compile-flag=-fno-omit-frame-pointer \
--compile-flag=-fno-common --compile-flag=-g --strip=off \
--system-allocator=on --logging=on --linker-flag=-fuse-ld=gold \
--error-messages=on --profile=es2015-subset  --builddir=$PWD/build
```
###### Test case
```
    var obj = {};

    var result = "3";
    for (var i in result) {
        print(JSON.stringify({
    toJSON: function (x,x,x) {
    return arguments[0] + arguments[1];},}),'{"key":false}');}
```

###### Output
```
ICE: Assertion 'ecma_is_value_undefined (value) || ecma_is_value_null (value) || ecma_is_value_boolean (value) || ecma_is_value_number (value) || ecma_is_value_string (value) || ecma_is_value_bigint (value) || ecma_is_value_symbol (value) || ecma_is_value_object (value)' failed at /root/jerryscript/jerry-core/ecma/base/ecma-helpers-value.c(ecma_check_value_type_is_spec_defined):438.
Error: ERR_FAILED_INTERNAL_ASSERTION
Aborted

```

Credits: Found by chong from OWL337.
Assertion 'ecma_is_value_undefined (value) || ecma_is_value_null (value) || ecma_is_value_boolean (value) || ecma_is_value_number (value) || ecma_is_value_string (value) || ecma_is_value_bigint (value) || ecma_is_value_symbol (value) || ecma_is_value_object (value)' in ecma_check_value_type_is_spec_defined
This is a GitHub Issue
repo:jerryscript
owner:jerryscript-project
Title : Assertion 'ecma_is_value_undefined (value) || ecma_is_value_null (value) || ecma_is_value_boolean (value) || ecma_is_value_number (value) || ecma_is_value_string (value) || ecma_is_value_bigint (value) || ecma_is_value_symbol (value) || ecma_is_value_object (value)' in ecma_check_value_type_is_spec_defined
Issue date:

--- start body ---
###### JerryScript revision
0a3aa0f4

###### Build platform
Ubuntu 18.04.5 LTS(Linux 4.15.0-119-generic x86_64)

###### Build steps
```
./tools/build.py --clean --debug --compile-flag=-fsanitize=address \
--compile-flag=-m32 --compile-flag=-fno-omit-frame-pointer \
--compile-flag=-fno-common --compile-flag=-g --strip=off \
--system-allocator=on --logging=on --linker-flag=-fuse-ld=gold \
--error-messages=on --profile=es2015-subset  --builddir=$PWD/build
```
###### Test case
```
    var obj = {};

    var result = "3";
    for (var i in result) {
        print(JSON.stringify({
    toJSON: function (x,x,x) {
    return arguments[0] + arguments[1];},}),'{"key":false}');}
```

###### Output
```
ICE: Assertion 'ecma_is_value_undefined (value) || ecma_is_value_null (value) || ecma_is_value_boolean (value) || ecma_is_value_number (value) || ecma_is_value_string (value) || ecma_is_value_bigint (value) || ecma_is_value_symbol (value) || ecma_is_value_object (value)' failed at /root/jerryscript/jerry-core/ecma/base/ecma-helpers-value.c(ecma_check_value_type_is_spec_defined):438.
Error: ERR_FAILED_INTERNAL_ASSERTION
Aborted

```

Credits: Found by chong from OWL337.
--- end body ---

An internal assertion failure in JerryScript v0a3aa0f4 occurs when executing a specific JavaScript code snippet, leading to a potential Denial of Service (DoS) due to the program aborting unexpectedly. This indicates a vulnerability where crafted input can cause the interpreter to crash.