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https://issues.apache.org/jira/browse/HADOOP-17683?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira Ajisaka resolved HADOOP-17683.
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Fix Version/s: 3.4.0
3.3.1
Resolution: Fixed
Committed to trunk and branch-3.3.
> Update commons-io to 2.8.0
> --------------------------
>
> Key: HADOOP-17683
> URL: https://issues.apache.org/jira/browse/HADOOP-17683
> Project: Hadoop Common
> Issue Type: Task
> Reporter: Wei-Chiu Chuang
> Assignee: Akira Ajisaka
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.3.1, 3.4.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> https://nvd.nist.gov/vuln/detail/CVE-2021-29425
> In Apache Commons IO before 2.7, When invoking the method
> FileNameUtils.normalize with an improper input string, like "//../foo", or
> "\\..\foo", the result would be the same value, thus possibly providing
> access to files in the parent directory, but not further above (thus
> "limited" path traversal), if the calling code would use the result to
> construct a path value.
> We don't use this API in the Hadoop code, but it's still good to update
> anyway (we're on 2.5, which is 4 years old)
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