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Vulnerability DatabaseCVE-2021-22116

CVE-2021-22116: 
NixOS vulnerability analysis and mitigation

Overview

RabbitMQ versions prior to 3.8.16 contain a denial of service vulnerability (CVE-2021-22116) due to improper input validation in the AMQP 1.0 client connection endpoint. The vulnerability was discovered by Jonathan Knudsen of Synopsys Cybersecurity Research Center (CyRC) and was initially reported on May 10, 2021 (VMware Tanzu).

Technical details

The vulnerability has been assigned a CVSS v3.1 base score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. The issue stems from improper input validation (CWE-20) and uncontrolled resource consumption (CWE-400) in the AMQP 1.0 plugin (NVD).

Impact

When exploited, this vulnerability can result in a denial of service condition affecting the RabbitMQ server instance. The impact is specifically limited to availability, with no direct effect on confidentiality or integrity of the system (NVD).

Mitigation and workarounds

The recommended mitigation is to upgrade to RabbitMQ version 3.8.16 or later. This version contains the necessary fixes to address the vulnerability. The fix was implemented through commits in both v3.9.0-beta.1 and v3.8.15-rc.2 (Debian Security).

Additional resources

Source: This report was generated using AI

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