CVE-2024-29131

What it actually does

Out-of-bounds write in Apache Commons Configuration 2.0 before 2.10.1 that corrupts adjacent memory during configuration parsing.

Why it matters to the business

Applications depending on the library can crash or leak limited data; widespread use of the component increases exposure across many environments.

How an attack unfolds

An attacker supplies a malicious configuration source that triggers the out-of-bounds write when the library parses it, resulting in memory corruption that may be leveraged for limited read/write or denial of service.

How to fix it

Upgrade Apache Commons Configuration to version 2.10.1 or later; rebuild and redeploy all dependent applications after the library update.

How to confirm the fix worked

Verify the deployed commons-configuration jar or dependency declaration reports version 2.10.1 or newer; run regression tests that exercise configuration parsing paths.

Typical attack path

1. Locate an application that loads configuration through Apache Commons Configuration 2.x < 2.10.1
2. Craft a configuration payload containing oversized or malformed data
3. Deliver the payload via network request, file upload, or environment variable
4. Trigger configuration loading to execute the out-of-bounds write

How to detect it

Review application logs for crashes or exceptions originating from configuration parsing routines; inspect process memory dumps for signs of corruption after configuration load events.

What your security team should do

• Prioritize upgrade of Apache Commons Configuration to 2.10.1 in all build pipelines
• Scan dependency manifests for versions 2.0-2.10.0 and flag them for immediate replacement
• Monitor application logs for abnormal crashes or memory errors during configuration loading