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Microsoft MsMpEng - Use-After-Free via Saved Callers Exploit
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Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=1259 In JsRuntimeState::setCaller, it saves the current caller in the JsRuntimeState object(rcx+158h in 64-bit). But the garbage collector doesn't mark this saved value. So it results in a UAF. Unlike in our test environment(Linux), it doesn't make reliable crashes on Windows. So I used another bug(#1258) to confirm the bug. If the UAF bug doesn't exist, the "crash" function will not be called(See poc.js). The password of the zip file is "calleruaf" Proof of Concept: https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/42092.zip # 0day.today [2024-10-06] #