CVE-2023-37900 : What You Need to Know

This article provides detailed information about CVE-2023-37900, a vulnerability affecting Crossplane software.

Understanding CVE-2023-37900

CVE-2023-37900 is a vulnerability found in Crossplane, a framework used for building cloud native control planes. The vulnerability could lead to denial of service due to uncontrolled resource consumption.

What is CVE-2023-37900?

The vulnerability in Crossplane versions prior to 1.11.5, 1.12.3, and 1.13.0 allows a high-privileged user to create a Package with a large image, potentially causing memory exhaustion and the container being OOMKilled.

The Impact of CVE-2023-37900

The impact of this vulnerability is limited due to the high privileges required to exploit it and the eventual consistency nature of the controller. However, it can still result in denial of service.

Technical Details of CVE-2023-37900

This section covers the technical details of CVE-2023-37900.

Vulnerability Description

Crossplane vulnerability leading to denial of service from uncontrolled resource consumption. Fixed in versions 1.11.5, 1.12.3, and 1.13.0.

Affected Systems and Versions

Vendor: Crossplane
Product: Crossplane
Affected Versions:
< 1.11.5

= 1.12.0, < 1.12.3

Exploitation Mechanism

A high-privileged user can exploit the vulnerability by creating a Package with a large image, triggering memory exhaustion.

Mitigation and Prevention

Learn how to mitigate and prevent CVE-2023-37900.

Immediate Steps to Take

Update Crossplane to versions 1.11.5, 1.12.3, or 1.13.0.

Long-Term Security Practices

Regularly update software to the latest versions.
Monitor resources and set limits to prevent resource exhaustion.

Patching and Updates

Apply patches provided by Crossplane to address the vulnerability.