Missing Initialization of Resource in Apache Arrow
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | pyarrow | >= 0.12.0, < 0.15.1 | 0.15.1 |
References
- https://lists.apache.org/thread.html/49f067b1c5fb7493d952580f0d2d032819ba351f7a78743c21126269@%3Cdev.arrow.apache.org%3E
- http://www.openwall.com/lists/oss-security/2019/11/08/1
- https://lists.apache.org/thread.html/efd8bbf57427d3c303b5316d208a335f8d0c0dbe0dc4c87cfa995073@%3Cannounce.apache.org%3E
- https://github.com/advisories/GHSA-cjw4-2w9r-r8mv
- https://nvd.nist.gov/vuln/detail/CVE-2019-12410
- https://github.com/apache/arrow
- https://github.com/pypa/advisory-database/tree/main/vulns/pyarrow/PYSEC-2019-196.yaml
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/red-arrow/CVE-2019-12410.yml
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-909- Platform
- Python (PyPI)
- Package
pyarrow- Disclosed
- 08.11.2019
- Updated
- 11.10.2026 11:20
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2019-196 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-cjw4-2w9r-r8mv - CC BY 4.0
Vulnerability history: pyarrow
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 11.2019 02.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 3
- Unrated 1
Disclosures per year
- 2019: 2
- 2020: 0
- 2021: 0
- 2022: 0
- 2023: 1
- 2024: 1
- 2025: 0
- 2026: 1
-
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