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https://issues.apache.org/jira/browse/THRIFT-6028?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jens Geyer resolved THRIFT-6028.
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Fix Version/s: 0.24.0
Assignee: Jens Geyer
Resolution: Fixed
> Harden Perl protocol negative sizes
> -----------------------------------
>
> Key: THRIFT-6028
> URL: https://issues.apache.org/jira/browse/THRIFT-6028
> Project: Thrift
> Issue Type: Bug
> Components: Perl - Library
> Reporter: Jens Geyer
> Assignee: Jens Geyer
> Priority: Major
> Fix For: 0.24.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> The Perl library does not validate negative sizes when reading Thrift
> payloads.
> Size values appear in binary/string fields and in map/list/set headers. Those
> values must be non-negative. In the current Perl implementation, a malformed
> payload can declare a negative size and the value is passed directly to the
> transport read path without rejection.
> This is a protocol hardening gap compared with other runtimes such as C++,
> Java, Python, Go, and Node.js, which all raise a NEGATIVE_SIZE exception.
> The fix should add negative-size checks in:
> - {{TBinaryProtocol::readListBegin}}
> - {{TBinaryProtocol::readMapBegin}}
> - {{TBinaryProtocol::readSetBegin}}
> - {{TBinaryProtocol::readString}} / {{readStringBody}}
> See THRIFT-6025 for the equivalent Ruby fix.
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