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https://issues.apache.org/jira/browse/AVRO-4282?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ismaël Mejía resolved AVRO-4282.
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Resolution: Duplicate
Superseded by AVRO-4296. The collection block-count cap for [python] has been
folded into that issue's fix (PR https://github.com/apache/avro/pull/3861),
which now provides a single complete protection against collection allocation
DoS: available-bytes validation, a heap-aware cap for zero-byte-element
collections, a structural cap, and bounded skip paths. Resolving this as a
duplicate/superseded; the PR here (closed) is superseded by #3861.
> [python] Bound collection size when decoding arrays and maps
> ------------------------------------------------------------
>
> Key: AVRO-4282
> URL: https://issues.apache.org/jira/browse/AVRO-4282
> Project: Apache Avro
> Issue Type: Sub-task
> Components: python
> Affects Versions: 1.11.5, 1.12.1
> Reporter: Ismaël Mejía
> Assignee: Ismaël Mejía
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.12.2
>
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> {{DatumReader.read_array()}} and {{read_map()}} in {{lang/py/avro/io.py}}
> iterate {{range(block_count)}} using the count read from input; the block
> size is skipped and no limit is applied.
> Add a configurable maximum collection length, validated per block and
> cumulatively, and raise a clear decoding error when exceeded. Add a
> corresponding test.
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