CVE-2020-27822 : Vulnerability Insights and Analysis

A flaw in Wildfly versions 19.0.0.Final, 19.1.0.Final, 20.0.0.Final, 20.0.1.Final, and 21.0.0.Final can lead to a memory leak when using the OpenTracing API's java-interceptors, impacting server availability.

Understanding CVE-2020-27822

This CVE involves a vulnerability in Wildfly that can be exploited to affect system availability.

What is CVE-2020-27822?

The vulnerability in Wildfly versions 19.0.0.Final, 19.1.0.Final, 20.0.0.Final, 20.0.1.Final, and 21.0.0.Final can result in a memory leak when utilizing the OpenTracing API's java-interceptors, potentially impacting server availability.

The Impact of CVE-2020-27822

The highest threat posed by this vulnerability is to system availability, as an attacker could exploit it to impact the server's availability.

Technical Details of CVE-2020-27822

This section provides technical details about the CVE.

Vulnerability Description

The flaw in Wildfly versions mentioned can lead to a memory leak when an application uses the OpenTracing API's java-interceptors.

Affected Systems and Versions

Product: Wildfly
Versions: 19.0.0.Final, 19.1.0.Final, 20.0.0.Final, 20.0.1.Final, 21.0.0.Final

Exploitation Mechanism

The vulnerability can be exploited when utilizing the OpenTracing API's java-interceptors, potentially causing a memory leak.

Mitigation and Prevention

Steps to address and prevent the CVE.

Immediate Steps to Take

Update Wildfly to a patched version that addresses the memory leak issue.
Monitor server availability closely for any unusual behavior.

Long-Term Security Practices

Regularly update and patch software to mitigate known vulnerabilities.
Implement proper access controls and monitoring to detect and respond to potential attacks.

Patching and Updates

Ensure that Wildfly is regularly updated with the latest patches to prevent exploitation of this vulnerability.