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Posted to issues@orc.apache.org by "Norbert Luksa (Jira)" <ji...@apache.org> on 2020/02/27 14:49:00 UTC
[jira] [Assigned] (ORC-605) Possible overflow in
StringDictionaryColumnReader
[ https://issues.apache.org/jira/browse/ORC-605?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Norbert Luksa reassigned ORC-605:
---------------------------------
> Possible overflow in StringDictionaryColumnReader
> -------------------------------------------------
>
> Key: ORC-605
> URL: https://issues.apache.org/jira/browse/ORC-605
> Project: ORC
> Issue Type: Bug
> Components: C++
> Reporter: Norbert Luksa
> Assignee: Norbert Luksa
> Priority: Major
>
> In the constructor of StringDictionaryColumnReader, [this line|https://github.com/apache/orc/blob/f349dc65af43911f8b839d25bacbd39bcc3dddd9/c%2B%2B/src/ColumnReader.cc#L590]
> {code:c++}
> lengthArray[i] += lengthArray[i - 1];
> {code}
> can overflow in case of a corrupt huge length value.
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