Denial of Service (DoS) Affecting node package, versions [12.0.0,12.18.0)[14.0.0,14.4.0)[10.0.0,10.21.0)


Severity

Recommended
0.0
low
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
5.32% (92nd percentile)

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  • Snyk IDSNYK-UPSTREAM-NODE-570871
  • published2 Jun 2020
  • disclosed2 Jun 2020
  • creditJames M Snell

Introduced: 2 Jun 2020

CVE-2020-11080  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade node to version 12.18.0, 14.4.0, 10.21.0 or higher.

Overview

node is a JavaScript runtime built on Chrome's V8 JavaScript engine.

Affected versions of this package are vulnerable to Denial of Service (DoS). Am overly large HTTP/2 SETTINGS frame payload in nghttp2 causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. Node runtime engine is affected by this vulnerability.

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