Denial of Service (DoS) Affecting github.com/crossplane/crossplane/internal/controller/pkg/revision package, versions <1.11.5>=1.12.0 <1.12.3


Severity

Recommended
0.0
low
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.07% (35th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Denial of Service (DoS) vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-GOLANG-GITHUBCOMCROSSPLANECROSSPLANEINTERNALCONTROLLERPKGREVISION-5808475
  • published28 Jul 2023
  • disclosed28 Jul 2023
  • creditAdamKorcz,DavidKorczynski

Introduced: 28 Jul 2023

CVE-2023-37900  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade github.com/crossplane/crossplane/internal/controller/pkg/revision to version 1.11.5, 1.12.3 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). A high-privileged user can create a Package referencing an arbitrarily large image containing that Crossplane would then parse, possibly resulting in exhausting all the available memory and therefore in the container being OOMKilled.

Note:

The impact is limited due to the high privileges required to be able to create the Package and the eventual consistency nature of the controller.

Details

Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

  • High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

  • Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm ws package

CVSS Base Scores

version 3.1