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https://issues.apache.org/jira/browse/LOG4J2-114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13495932#comment-13495932
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Ralph Goers commented on LOG4J2-114:
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Take a look at section 6.
PARAM_NAME is of type SD_NAME which is 1*32PRINTUSASCII (1-32 US ASCII
printable characters). Right now we are only validating the length, not the
characters.
Also note that HOSTNAME, APP-NAME, PROCID and MSGID also have length
restrictions. However PARAM_VALUE does not.
> StructuredDataMessage is incorrectly validating value length instead of key
> length
> ----------------------------------------------------------------------------------
>
> Key: LOG4J2-114
> URL: https://issues.apache.org/jira/browse/LOG4J2-114
> Project: Log4j 2
> Issue Type: Bug
> Components: API
> Affects Versions: 2.0-beta2
> Reporter: Arkin Yetis
> Attachments: StructuredDataMessage.java.patch,
> StructuredDataMessageTest.java.patch
>
>
> During execution of method SLF4JLogger.log, the following exception is thrown
> during creation of the StructuredMessage with a key longer than 32 characters.
> java.lang.IllegalArgumentException: Structured data values are limited to 32
> characters. key: memo value: This is a very long test memo to demonstrate the
> issue
> The validation should be on key length and not the value length.
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