35 vulnerabilities classified as CWE-763 (对无效指针或索引的释放). AI Chinese analysis included.
CWE-763 represents a critical memory management weakness where software attempts to return a resource to the system using an incorrect or improperly invoked release function. This error typically arises when memory allocated via one method is deallocated using a non-compatible function, such as mixing C++ new with C free, or when the release function is called with invalid arguments. Attackers exploit this vulnerability to trigger undefined behavior, potentially leading to application crashes, data corruption, or arbitrary code execution by manipulating the heap’s internal state. Developers prevent this by strictly adhering to consistent memory management paradigms, ensuring that every allocation has a corresponding, compatible deallocation call. Utilizing automated static analysis tools and rigorous code reviews further helps identify mismatched pointer references before deployment, thereby maintaining system integrity and preventing exploitation of these subtle but dangerous logical errors.
char **ap, *argv[10], *inputstring; for (ap = argv; (*ap = strsep(&inputstring, " \t")) != NULL;) if (**ap != '\0') if (++ap >= &argv[10]) break; /.../ free(ap[4]);void foo(){ BarObj *ptr = new BarObj() /* do some work with ptr here */ ... free(ptr); }void foo(){ BarObj *ptr = new BarObj() /* do some work with ptr here */ ... delete ptr; }Vulnerabilities classified as CWE-763 (对无效指针或索引的释放) represent 35 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.