What are security issues in the C language?

C language is susceptible to buffer overflows, null pointer dereferences, and undefined behavior, which can lead to security vulnerabilities if not handled carefully. Manual memory management in C also increases the risk of memory-related issues like memory leaks and dangling pointers. Additionally, C's lack of built-in bounds checking can make it prone to buffer overflows, allowing attackers to overwrite data and execute arbitrary code.

The C language poses several security issues due to its low-level nature and minimal built-in safeguards. One significant concern is buffer overflow, where writing beyond the allocated memory space can lead to unpredictable behavior or even allow attackers to execute arbitrary code. Another issue is pointer manipulation, which can result in memory corruption or unauthorized access to sensitive data. Additionally, C lacks built-in bounds checking, making it prone to array out-of-bounds accesses. The absence of automatic memory management can lead to memory leaks and dangling pointers, potentially causing crashes or vulnerabilities. Furthermore, C's type system is not as strict as in other languages, enabling type confusion and related exploits. Finally, the reliance on manual memory management increases the risk of memory-related vulnerabilities such as use-after-free and double-free bugs.

Even though the C language is widely used in different systems still it has many security flaws associated with it. This article focuses on discussing security vulnerabilities in the C language. Mainly these security issues are related to vulnerable library functions, No bound checking for array and Pointers