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Posted to issues@ignite.apache.org by "Pavel Tupitsyn (Jira)" <ji...@apache.org> on 2021/11/25 07:07:00 UTC

[jira] [Assigned] (IGNITE-15921) Vulnerability in thin client protocol leads to OOM

     [ https://issues.apache.org/jira/browse/IGNITE-15921?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pavel Tupitsyn reassigned IGNITE-15921:
---------------------------------------

    Assignee: Pavel Tupitsyn

> Vulnerability in thin client protocol leads to OOM
> --------------------------------------------------
>
>                 Key: IGNITE-15921
>                 URL: https://issues.apache.org/jira/browse/IGNITE-15921
>             Project: Ignite
>          Issue Type: Improvement
>          Components: thin client
>    Affects Versions: 2.11
>            Reporter: Ilya Kazakov
>            Assignee: Pavel Tupitsyn
>            Priority: Critical
>
> As thin client protocol interprets first 4 bytes as message size and allocate array for it. Any "big" 4 bytes sent on thin client port could leads to OOM.
> Some ideas to resolve:
>  - print WARN in case of big client message
>  - allocate array not for all message, but allocate it gradually.
>  - read more then first4 bytes to understand is it real client message, or it is some trash.



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