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https://issues.apache.org/jira/browse/THRIFT-6036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jens Geyer resolved THRIFT-6036.
--------------------------------
    Fix Version/s: 0.24.0
         Assignee: Jens Geyer
       Resolution: Fixed

> Harden JavaME protocol negative sizes
> -------------------------------------
>
>                 Key: THRIFT-6036
>                 URL: https://issues.apache.org/jira/browse/THRIFT-6036
>             Project: Thrift
>          Issue Type: Bug
>          Components: JavaME - Library
>            Reporter: Jens Geyer
>            Assignee: Jens Geyer
>            Priority: Major
>             Fix For: 0.24.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> The JavaME 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. Unlike the standard Java library 
> (org.apache.thrift), the JavaME TBinaryProtocol does not include 
> negative-size checks in readMapBegin, readListBegin, readSetBegin, 
> readString/readStringBody, or readBinary.
> Note: the existing size < 0 check in readMessageBegin is for protocol version 
> detection (old-style message framing), not size validation.
> This is a protocol hardening gap. The standard Java binding raises a 
> TProtocolException with type NEGATIVE_SIZE; the JavaME binding should be 
> brought to parity.
> The fix should add the same negative-size validation as TBinaryProtocol.java 
> to all container and string/binary read paths in the JavaME variant.
> See THRIFT-6025 for the equivalent Ruby fix.



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