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https://issues.apache.org/jira/browse/ORC-403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Quanlong Huang reassigned ORC-403:
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> Should check PostScript length before serializing it
> ----------------------------------------------------
>
> Key: ORC-403
> URL: https://issues.apache.org/jira/browse/ORC-403
> Project: ORC
> Issue Type: Bug
> Components: C++
> Reporter: Quanlong Huang
> Assignee: Quanlong Huang
> Priority: Major
>
> A malformed ORC file may have a postscript length larger than the file size,
> which causes orc:: readPostscript to read unexpected data.
> {code}
> std::unique_ptr<proto::PostScript> postscript =
> std::unique_ptr<proto::PostScript>(new proto::PostScript());
> if (!postscript->ParseFromArray(ptr + readSize - 1 - postscriptSize,
> static_cast<int>(postscriptSize))) {
> throw ParseError("Failed to parse the postscript from " +
> stream->getName());
> }
> {code}
> We should make sure readSize - 1 - postscriptSize >= 0.
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