Denial of Service (DoS) Affecting github.com/kubeedge/kubeedge/edge/pkg/edgehub/certificate package, versions <1.9.4>=1.10.0 <1.10.2>=1.11.0 <1.11.1


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.06% (27th percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMKUBEEDGEKUBEEDGEEDGEPKGEDGEHUBCERTIFICATE-2947007
  • published12 Jul 2022
  • disclosed11 Jul 2022
  • creditDavid Korczynski, Adam Korczynski

Introduced: 11 Jul 2022

CVE-2022-31075  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade github.com/kubeedge/kubeedge/edge/pkg/edgehub/certificate to version 1.9.4, 1.10.2, 1.11.1 or higher.

Overview

github.com/kubeedge/kubeedge/edge/pkg/edgehub/certificate is a Kubernetes Native Edge Computing Framework (project under CNCF)

Affected versions of this package are vulnerable to Denial of Service (DoS) by sending a specially crafted HTTP request with a very large body to the /edge.crt endpoint. Exploiting this vulnerability can exhaust all available memory when the service attempts to sign the CSR from EdgeCore.

NOTE: A node is only vulnerable if the cloudHub module is enabled in cloudcore.yaml.

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 Scores

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