Denial of Service (DoS) Affecting github.com/cri-o/cri-o/internal/config/conmonmgr package, versions <1.22.5 >=1.23.0 <1.23.3 >=1.24.0 <1.24.1


0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Scope Changed
    Availability High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.43% (74th percentile)
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NVD
7.5 high
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SUSE
6.8 medium
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Red Hat
6.8 medium

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  • Snyk ID SNYK-GOLANG-GITHUBCOMCRIOCRIOINTERNALCONFIGCONMONMGR-2859772
  • published 7 Jun 2022
  • disclosed 6 Jun 2022
  • credit DavidKorczynski, AdamKorcz

How to fix?

Upgrade github.com/cri-o/cri-o/internal/config/conmonmgr to version 1.22.5, 1.23.3, 1.24.1 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS) where the node can be exhausted of memory or disk space if the output of the ExecSync command is large enough, depending on the node the command is being run on. As a result, other services on the node (e.g. other containers) will be unable to allocate memory.

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