Denial of Service (DoS) Affecting github.com/katzenpost/noise Open this link in a new tab package, versions <0.0.3


0.0
medium
  • Attack Complexity

    Low

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  • snyk-id

    SNYK-GOLANG-GITHUBCOMKATZENPOSTNOISE-1583457

  • published

    9 Sep 2021

  • disclosed

    8 Sep 2021

  • credit

    Unknown

Introduced: 8 Sep 2021

CWE-400 Open this link in a new tab

How to fix?

Upgrade github.com/katzenpost/noise to version 0.0.3 or higher.

Overview

github.com/katzenpost/noise is a Noise Protocol Framework: Katzenpost fork of the flynn noise library.

Affected versions of this package are vulnerable to Denial of Service (DoS). If an attacker sends an invalid ciphertext into one peer's Decrypt, the nonce is incremented unconditionally. This causes a desync of the CipherState due to a nonce mismatch between the peers, resulting in a failure to decrypt all subsequent messages. A new handshake will be required to establish a new CipherState.

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