The test case shows a Time-of-Check-Time-of-Use (TOCTOU) race condition between checking file attributes and then opening and writing to the file.

This test case shows no double free weakness.

This test case shows double free weakness.

The test case shows protection against the use of an allocated memory after being freed.

The test case shows a use of an allocated memory after being freed.

The test case shows protection against the use of an allocated memory after being freed with a string which is in a structure.

The test case shows a use of an allocated memory after being freed with a string which is in a structure.

The test case shows protection against the use of an allocated memory after being freed with scope complexity.

The test case shows a use of an allocated memory after being freed with scope complexity.

Attepmts to assign a character to a memory that has been freed.

Assigns a character to a memory that has been freed.

This test case shows a block of memory freed once.

This test case shows a block of memory freed twice.

This is a CGI program which take some parameters values then print it. It avoids Cross-Site Scripting in C within a looping complexity.

This is a CGI program which take some parameters values then print it. It shows Cross-Site Scripting in C within a looping complexity.

This test case avoids the problem of NULL pointer dereference.

This test case shows a null pointer being dereferenced.

Pointer is checked before use.

Pointer may contain garbage and pass in the check.

The test case avoids a use of an allocated memory after being freed.

The test case shows a use of an allocated memory after being freed.

An example to prevent heap overflow.

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as the POSIX malloc() call.

The test cases implements CVE-2002-1869: Checks if you can write a log file allow attackers to avoid logging.

The test cases implements CVE-2002-1869: Does not check if you can write a log file allow attackers to avoid logging.