Elasticsearch 8.11.1 Security Update (ESA-2024-05)

Elasticsearch Uncaught Exception (ESA-2024-05)

An uncaught exception in Elasticsearch >= 8.4.0 and < 8.11.1 occurs when an encrypted PDF is passed to an attachment processor through the REST API. The Elasticsearch ingest node that attempts to parse the PDF file will crash. This does not happen with password-protected PDF files or with unencrypted PDF files.

Affected Versions:
Affects versions >= 8.4.0 and < 8.11.1

Solutions and Mitigations:
The issue is resolved in version 8.11.1.

This requires the attachment processor to be enabled. Users unable to upgrade can ensure that the attachment processor is disabled.

Severity: CVSSv3: 4.3(Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVE ID: CVE-2024-23449