[
https://issues.apache.org/jira/browse/LOG4J2-3230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17461598#comment-17461598
]
Mirko Friedenhagen commented on LOG4J2-3230:
--------------------------------------------
Many thanks for the clarification, [~jbristow]. After rereading what you wrote
I just repeated your experiment.
So I assume that 2.16 is somehow safe in that regards unless you are using
strange patterns, right? We just updated a bunch of applications to 2.16.0 last
week because of the log4j2-shell attack and this does not look as if we should
work through the weekend to update :-).
> 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}}}}.
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
