rspec/rules/S3921/cobol/rule.adoc
Egon Okerman d1417e82f8
Modify CWE and OWASP Top 10 links to follow standard link format (APPSEC-1134) (#3529)
* Fix all CWE references

* Fix all OWASP references

* Fix missing CWE prefixes
2024-01-15 17:15:56 +01:00

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== Why is this an issue?
Moving a large string into a small field will result in data truncation with data lost from the right side of the string.
=== Noncompliant code example
[source,cobol]
----
01 ALPHA PIC X(4).
*> ...
MOVE "Now is the time" TO ALPHA *> Noncompliant. Becomes "Now "
----
=== Compliant solution
[source,cobol]
----
01 ALPHA PIC X(15).
*> ...
MOVE "Now is the time" TO ALPHA
----
== Resources
* CWE - https://cwe.mitre.org/data/definitions/704[CWE-704 - Incorrect Type Conversion or Cast]
=== Related rules
* S1967 - for truncation of numeric values
ifdef::env-github,rspecator-view[]
'''
== Implementation Specification
(visible only on this page)
include::../message.adoc[]
include::../parameters.adoc[]
include::../highlighting.adoc[]
'''
== Comments And Links
(visible only on this page)
include::../comments-and-links.adoc[]
endif::env-github,rspecator-view[]