SEI CERT C Coding Standard

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Search for vulnerabilities resulting from the violation of this rule on the CERT website.

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This rule appears in the C++ Secure Coding Standard as INT32-CPP. Ensure that operations on signed integers do not result in overflow.

References

Wiki Markup
\[[Dowd 06|AA. C References#Dowd 06]\] Chapter 6, "C Language Issues" (Arithmetic Boundary Conditions, pp. 211-223)
\[[ISO/IEC 9899:1999|AA. C References#ISO/IEC 9899-1999]\] Section 6.5, "Expressions," and Section 7.10, "Sizes of integer types <limits.h>"
\[[ISO/IEC PDTR 24772|AA. C References#ISO/IEC PDTR 24772]\] "XYY Wrap-around Error"
\[[MITRE 07|AA. C References#MITRE 07]\] [CWE ID 129|http://cwe.mitre.org/data/definitions/129.html], "Unchecked Array Indexing" and [CWE ID 190|http://cwe.mitre.org/data/definitions/190.html], "Integer Overflow (Wrap or Wraparound)"
\[[Seacord 05|AA. C References#Seacord 05]\] Chapter 5, "Integers"
\[[Viega 05|AA. C References#Viega 05]\] Section 5.2.7, "Integer overflow"
\[[VU#551436|AA. C References#VU551436]\]
\[[Warren 02|AA. C References#Warren 02]\] Chapter 2, "Basics"

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