[ARROW-14109] Segfault When Reading JSON With Duplicate Keys

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/29699

Language

C++

• Assignee: Unassigned
• Reporter: William Butler
• Created: 23/Sep/21 20:14
• Updated: 11/Jan/23 08:37
• Resolved: 29/Sep/21 01:03

Description

When arrow attempts to parse JSON with duplicate keys and no explicit schema is provided, an out of buffer read is performed and Arrow can crash. Reproducing json:

{"a":0, "a":1}

Issue Links

• links to: GitHub Pull Request #11222