[jira] [Updated] (AVRO-4286) [csharp] Enforce a maximum decompressed block size

["Ismaël Mejía (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AVRO-4286?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ismaël Mejía updated AVRO-4286:
-------------------------------
        Fix Version/s: 1.12.2
    Affects Version/s: 1.12.1
                       1.11.5
                           (was: 1.13.0)

> [csharp] Enforce a maximum decompressed block size
> --------------------------------------------------
>
>                 Key: AVRO-4286
>                 URL: https://issues.apache.org/jira/browse/AVRO-4286
>             Project: Apache Avro
>          Issue Type: Sub-task
>          Components: csharp
>    Affects Versions: 1.11.5, 1.12.1
>            Reporter: Ismaël Mejía
>            Priority: Major
>             Fix For: 1.12.2
>
>
> {{DataFileReader.HasNext()}} in {{lang/csharp/src/apache/main/File/DataFileReader.cs}} calls {{_codec.Decompress(...)}}, and the codec implementations (deflate, snappy, zstandard, bzip2, xz) decompress via {{Stream.CopyTo}} into an unbounded {{MemoryStream}} (or a full-buffer decode) with no size limit.
> Enforce a configurable maximum decompressed size in the codecs and fail decoding with a clear error when a block would exceed it. Add a test with a high-ratio block.



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