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From "Trustin Lee (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DIRMINA-454) Trivial denial of service in TextLineDecoder
Date Tue, 16 Oct 2007 00:39:50 GMT

    [ https://issues.apache.org/jira/browse/DIRMINA-454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12535018

Trustin Lee commented on DIRMINA-454:

Yigal Rachman wrote:

Another thing with this problem:  once the buffer has exceeded the maximum line length, the
decoder stops recognizing the termination sequence, and is therefore doomed anyway.  Is there
some elegant way to reject the offending line and start over?

> Trivial denial of service in TextLineDecoder
> --------------------------------------------
>                 Key: DIRMINA-454
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-454
>             Project: MINA
>          Issue Type: Bug
>          Components: Filter
>    Affects Versions: 1.1.2
>            Reporter: Owen Jacobson
>         Attachments: no-dos.patch
> In both of TextLineDecoder's decoding methods, the decoder only checks the size of input
after it's found at least one line ending character.  Infinitely long streams of, say, 'y's
will cause the decoder to try to buffer up data until the JVM falls over.

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