# CVE-2019-12410: Missing Initialization of Resource in Apache Arrow

Source: https://junglewise.ai/threats/cve-2019-12410-missing-initialization-of-resource-in-apache-arrow  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2019-11-08  
License: CC BY 4.0 with a link back

CVE-2019-12410 · Severity: low · CVSS 3.1 · Published 2019-11-08

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.

Technologies: [pyarrow (PyPI)](https://junglewise.ai/threats/technologies/pyarrow). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi), [RubyGems](https://junglewise.ai/threats/vendors/rubygems).

## Quick answers

**Is CVE-2019-12410 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2019-12410 being exploited in the wild.

**How severe is CVE-2019-12410?** Low severity, with a CVSS score of 3.1, published 8 November 2019.

**Which products and versions are affected?** pyarrow (PyPI) ECOSYSTEM:introduced=0.12.0,fixed=0.15.0; red-arrow (RubyGems) ECOSYSTEM:introduced=0.12.0,fixed=0.15.1.

**Is there a fix for CVE-2019-12410?** Yes. pyarrow (PyPI): upgrade to 0.15.0 or later; red-arrow (RubyGems): upgrade to 0.15.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2019-12410?** Check whether you run pyarrow (PyPI) or red-arrow (RubyGems) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- pyarrow (PyPI): upgrade to 0.15.0 or later

  ```sh
  pip install "pyarrow>=0.15.0"
  ```

- red-arrow (RubyGems): upgrade to 0.15.1 or later

  ```sh
  bundle update red-arrow
  ```


## Affected products

- pyarrow (PyPI) ECOSYSTEM:introduced=0.12.0,fixed=0.15.0
- red-arrow (RubyGems) ECOSYSTEM:introduced=0.12.0,fixed=0.15.1

## Identifiers

- CVE-2019-12410
- GHSA-cjw4-2w9r-r8mv
- PYSEC-2019-196

## Related threats

- [Apache Arrow C++ use-after-free in IPC file reader](https://junglewise.ai/threats/cve-2026-25087-apache-arrow-c-use-after-free-in-ipc-file-reader)
- [PYSEC-2024-161 - Deserialization of untrusted data in IPC and Parquet readers in the Apache Arrow R package versions…](https://junglewise.ai/threats/cve-2024-52338-pysec-2024-161-deserialization-of-untrusted-data-in-ipc-and)
- [PyArrow: Arbitrary code execution when loading a malicious data file](https://junglewise.ai/threats/cve-2023-47248-pyarrow-arbitrary-code-execution-when-loading-a-malicious-data)
- [Missing Initialization of Resource in Apache Arrow](https://junglewise.ai/threats/cve-2019-12408-missing-initialization-of-resource-in-apache-arrow)