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https://issues.apache.org/jira/browse/HDFS-16007?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Akira Ajisaka updated HDFS-16007:
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Summary: Deserialization of ReplicaState should avoid throwing
ArrayIndexOutOfBoundsException (was: Vulnerabilities found when serializing
enum value)
> Deserialization of ReplicaState should avoid throwing
> ArrayIndexOutOfBoundsException
> ------------------------------------------------------------------------------------
>
> Key: HDFS-16007
> URL: https://issues.apache.org/jira/browse/HDFS-16007
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: junwen yang
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> ReplicaState enum is using ordinal to conduct serialization and
> deserialization, which is vulnerable to the order, to cause issues similar to
> HDFS-15624.
> To avoid it, either adding comments to let later developer not to change this
> enum, or add index checking in the read and getState function to avoid index
> out of bound error.
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