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Posted to dev@thrift.apache.org by "Devesh Parekh (JIRA)" <ji...@apache.org> on 2012/07/06 03:46:34 UTC

[jira] [Updated] (THRIFT-1643) Denial of Service attack in TBinaryProtocol.readString

     [ https://issues.apache.org/jira/browse/THRIFT-1643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Devesh Parekh updated THRIFT-1643:
----------------------------------

    Attachment: Attack.java
                Foo.thrift

Demonstration of the attack.
                
> Denial of Service attack in TBinaryProtocol.readString
> ------------------------------------------------------
>
>                 Key: THRIFT-1643
>                 URL: https://issues.apache.org/jira/browse/THRIFT-1643
>             Project: Thrift
>          Issue Type: Bug
>          Components: Java - Library
>    Affects Versions: 0.6.1, 0.8
>         Environment: All
>            Reporter: Devesh Parekh
>            Priority: Critical
>              Labels: security
>         Attachments: Attack.java, Foo.thrift
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> In readString, if the string field's size is greater than the number of bytes remaining in the byte array to deserialize, libthrift will happily allocate a byte array of that size in readStringBody, filling the heap.

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