Denial of Service (DoS) Affecting github.com/ethereum/go-ethereum/p2p Open this link in a new tab package, versions <1.10.17


0.0
medium
  • Attack Complexity

    High

  • Availability

    High

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  • snyk-id

    SNYK-GOLANG-GITHUBCOMETHEREUMGOETHEREUMP2P-2841456

  • published

    22 May 2022

  • disclosed

    22 May 2022

  • credit

    nrv

How to fix?

Upgrade github.com/ethereum/go-ethereum/p2p to version 1.10.17 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). A vulnerable node, if configured to use high verbosity logging, can be made to crash when handling specially crafted p2p messages sent from an attacker node. Note: A possible workaround is to set the loglevel to INFO (as is default).

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