While investigating UBSAN errors in https://github.com/apache/arrow/pull/5365 it was discovered Apache Arrow versions 0.12.0 to 0.14.1, left memory Array data uninitialized when reading RLE null data from parquet. This affected the C++, Python, Ruby and R implementations. The uninitialized memory could potentially be shared if are transmitted over the wire (for instance with Flight) or persisted in the streaming IPC and file formats.
The product does not initialize a critical resource.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Arrow | Apache | 0.12.0 (including) | 0.14.1 (including) |