SEI CERT C++ Coding Standard

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Using an invalid array or container index can result in an arbitrary memory overwrite or abnormal program termination.

Rule

Severity

Likelihood

Remediation Cost

Priority

Level

CTR50-CPP

High

Likely

High

P9

L2

Automated Detection

Tool

Version

Checker

Description

Astrée

Include Page
Astrée_V
Astrée_V

overflow_upon_dereference
CodeSonar
Include Page
CodeSonar_V
CodeSonar_V

LANG.MEM.BO
LANG.MEM.BU
LANG.MEM.TO
LANG.MEM.TU
LANG.MEM.TBA
LANG.STRUCT.PBB
LANG.STRUCT.PPE
LANG.STRUCT.PARITH

Buffer overrun
Buffer underrun
Type overrun
Type underrun
Tainted buffer access
Pointer before beginning of object
Pointer past end of object
Pointer Arithmetic

Helix QAC

Include Page
Helix QAC_V
Helix QAC_V

C++3139, C++3140

DF2891


Klocwork
Include Page
Klocwork_V
Klocwork_V
ABV.ANY_SIZE_ARRAY
ABV.GENERAL
ABV.GENERAL.MULTIDIMENSION
ABV.STACK 
ABV.TAINTED
SV.TAINTED.ALLOC_SIZE
SV.TAINTED.CALL.INDEX_ACCESS
SV.TAINTED.CALL.LOOP_BOUND
SV.TAINTED.INDEX_ACCESS
LDRA tool suite
Include Page
LDRA_V
LDRA_V

45 D, 47 S, 476 S, 489 S, 64 X, 66 X, 68 X, 69 X, 70 X, 71 X, 79 X

Partially implemented

Parasoft C/C++test
9.5STL-36 
Include Page
Parasoft_V
Parasoft_V
CERT_CPP-CTR50-a
Guarantee that container indices are within the valid range
Polyspace Bug Finder

Include Page
Polyspace Bug Finder_V
Polyspace Bug Finder_V

CERT C++: CTR50-CPP

Checks for:

  • Array access out of bounds
  • Array access with tainted index
  • Pointer dereference with tainted offset

Rule partially covered.

PVS-Studio

Include Page
PVS-Studio_V
PVS-Studio_V

V781

Related Vulnerabilities

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

Related Guidelines

SEI CERT C Coding Standard ARR30-C. Do not form or use out-of-bounds pointers or array subscripts
MITRE CWECWE 119, Failure to Constrain Operations within the Bounds of a Memory Buffer
CWE 129, Improper Validation of Array Index

Bibliography

[ISO/IEC 14882-2014]

Clause 23, "Containers Library"
Subclause 24.2.1, "In General" 

[ISO/IEC TR 24772-2013]Boundary Beginning Violation [XYX]
Wrap-Around Error [XYY]
Unchecked Array Indexing [XYZ]
[Viega
05
2005]Section 5.2.13, "Unchecked Array Indexing"

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