0vercl0k/CVE-2022-21971

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CVE-2022-21971: Uninitialized pointer free in prauthproviders Root-cause The WapAuthProvider::CreateInstance constructor allocates and initializes a WapAuthProvider object (0x78 bytes) but it fails to initialize completely its state. The pointer at offset 0x50 is uninitialized and free'd when the destructor is invoked (in WapAuthProvider::~WapAuthProvider): prauthproviders!WapAuthProvider::~WapAuthProvider+0x38: 00007ffd`a91f3078 488b4b50 mov rcx,qword ptr [rbx+50h] ds:000001cf`efe35fd0=c0c0c0c0c0c0c0c0 0:011>...