CWE-131 Incorrect Calculation of Buffer Size

What is CWE (Common Weakness Enumeration)?

The Common Weakness Enumeration (CWE) is a community-developed list of common software and hardware weaknesses. By identifying these weaknesses, developers and security practitioners can prioritize and address potential vulnerabilities early in the development cycle. Explore our comprehensive CWE list below to better understand and mitigate common security issues.

CAPEC Patterns referencing CWE-131

Below is a list of CAPEC attack patterns associated with this CWE-131. Click on each CAPEC to learn more. The right column shows the related weaknesses (including this one).

CAPEC

Related Weaknesses

Overflow Buffers

CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-120	Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-129	Improper Validation of Array Index
CWE-131	Incorrect Calculation of Buffer Size
CWE-680	Integer Overflow to Buffer Overflow
CWE-805	Buffer Access with Incorrect Length Value

Buffer Overflow via Parameter Expansion

CWE-20	Improper Input Validation
CWE-74	Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-118	Incorrect Access of Indexable Resource ('Range Error')
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-120	Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-130	Improper Handling of Length Parameter Inconsistency
CWE-131	Incorrect Calculation of Buffer Size
CWE-680	Integer Overflow to Buffer Overflow
CWE-697	Incorrect Comparison

About CWE-131: Incorrect Calculation of Buffer Size

CWE-131 is one of the established Common Weakness Enumerations that identifies a specific type of vulnerability in software. Detailed analysis of CWE-131 helps organizations understand the risks associated with this weakness and implement effective countermeasures.

Explore related attack patterns, best practices, and expert recommendations on this page. By understanding CWE-131, you can enhance your security posture and better protect your applications against exploitation.