CVE-2023-43000 Apple WebKit Use-after-free内存损坏漏洞

// CVE-2023-43000 PoC - Use-after-free in WebKit // This PoC demonstrates the vulnerability pattern (educational use only) function trigger_uaf() { // Step 1: Create objects that will trigger the vulnerability const arr = new Array(); // Step 2: Create a victim object with specific structure class Victim { constructor() { this.data = new ArrayBuffer(0x1000); this.callback = null; } } // Step 3: Create multiple references for (let i = 0; i < 100; i++) { arr.push(new Victim()); } // Step 4: Trigger garbage collection manipulation // The actual exploit would use timing attacks to achieve UAF // Step 5: Reclaim memory and use freed object // In real exploit: spray heap, reclaim memory, corrupt vtable return arr; } // Mitigation: Update to patched versions console.log('Update to Safari 16.6+, iOS 16.6+, macOS 13.5+');