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From "Greg Roelofs (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6966) missing bzip2 bounds checks, other stream-corruption checks
Date Tue, 21 Sep 2010 01:28:33 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6966?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Greg Roelofs updated HADOOP-6966:
---------------------------------

    Attachment: bzip2-1.0.6-CVE-2010-0405.patch.txt
                H-6966.v1.trunk-hadoop-common.patch.txt

Relevant portion of bzip2 1.0.6 patch for CVE-2010-0405, and untested (not even compiled)
port of it to Hadoop trunk.

I've also added a credit that I suspect should have been added long ago (but in any case is
relevant to this patch) and marked three of the missing bounds-check locations without actually
attempting to fix them.  (They're all trivial, I think, just tedious; and I don't have time
at the moment to finish this off.)

> missing bzip2 bounds checks, other stream-corruption checks
> -----------------------------------------------------------
>
>                 Key: HADOOP-6966
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6966
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 0.22.0
>            Reporter: Greg Roelofs
>         Attachments: bzip2-1.0.6-CVE-2010-0405.patch.txt, H-6966.v1.trunk-hadoop-common.patch.txt
>
>
> The bzip2 Java port by Keiron Liddle appears to be very closely related to the bzip2/libbzip2
C code, but it is missing a number of data-integrity checks present in the latter (including
today's fix for CVE-2010-0405).
> Java may be immune to C-style buffer overruns, but the data-corruption possibility remains.
 I believe most of the 20+ BZ_DATA_ERROR checks in decompress.c are appropriate in the Ant/Hadoop
port.

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