SEI CERT C Coding Standard - Guidelines 07. Characters and Strings (STR)

A category in the Common Weakness Enumeration published by The MITRE Corporation.


Summary

Categories in the Common Weakness Enumeration (CWE) group entries based on some common characteristic or attribute.

Weaknesses in this category are related to the rules and recommendations in the Characters and Strings (STR) section of the SEI CERT C Coding Standard.

Weaknesses

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The program copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buf...

Heap-based Buffer 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 ...

Improper Null Termination

The software does not terminate or incorrectly terminates a string or array with a null character or equivalent terminator.

Improper Restriction of Operations within the Bounds of a Memory Buffer

The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.

Incorrect Type Conversion or Cast

The software does not correctly convert an object, resource, or structure from one type to a different type.

Out-of-bounds Read

The software reads data past the end, or before the beginning, of the intended buffer.

Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter ...

Use of Potentially Dangerous Function

The program invokes a potentially dangerous function that could introduce a vulnerability if it is used incorrectly, but the function can also be used safely.

Write-what-where Condition

Any condition where the attacker has the ability to write an arbitrary value to an arbitrary location, often as the result of a buffer overflow.

Concepts

Weaknesses Addressed by the SEI CERT C Coding Standard

CWE entries in this view (graph) are fully or partially eliminated by following the guidance presented in the online wiki that reflects that current rules and recommen...

See Also

  1. SEI CERT C Coding Standard : Rule 07. Characters and Strings (STR)

    The Software Engineering Institute

  2. SEI CERT C Coding Standard : Rec 07. Characters and Strings (STR)

    The Software Engineering Institute


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