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https://issues.apache.org/jira/browse/LOG4J2-3230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17462721#comment-17462721
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Gary D. Gregory commented on LOG4J2-3230:
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[~pmalone]
I understand your position as I am dealing similar issues! As you can imagine,
I am short on time ATM so I'd rather simply refer to 2.17.0 than spend time on
what can and can't happen on a now old version when I know a newer version
provides the better mitigation.
> Certain strings can cause infinite recursion
> --------------------------------------------
>
> Key: LOG4J2-3230
> URL: https://issues.apache.org/jira/browse/LOG4J2-3230
> Project: Log4j 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.8, 2.8.1, 2.8.2, 2.9.0, 2.9.1, 2.10.0, 2.11.0, 2.11.1,
> 2.11.2, 2.12.0, 2.12.1, 2.13.0, 2.13.1, 2.13.2, 2.14.0, 2.13.3, 2.14.1,
> 2.15.0, 2.16.0
> Reporter: Ross Cohen
> Assignee: Carter Kozak
> Priority: Major
> Fix For: 2.17.0
>
> Attachments: sample.tar.gz
>
>
> If a string substitution is attempted for any reason on the following string,
> it will trigger an infinite recursion, and the application will crash:
> ${${::\-${::\-$${::\-j}}}}.
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