RHSA-2021:5206: Moderate: log4j security update
Log4j is a tool to help the programmer output log statements to a variety of output targets.<br>Security Fix(es):<br><li> log4j: Remote code execution in Log4j 1.x when application is configured to use JMSAppender (CVE-2021-4104)</li> For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2021:5206?
The severity of RHSA-2021:5206 is considered critical due to the potential for remote code execution in Log4j 1.x.
How do I fix RHSA-2021:5206?
To fix RHSA-2021:5206, upgrade to the latest version of Log4j as specified in the advisory.
What versions of Log4j are affected by RHSA-2021:5206?
Versions of Log4j 1.x prior to 1.2.17-17.el7_4 and 1.2.14-6.5.el6_10 are affected by RHSA-2021:5206.
What kind of vulnerability is associated with RHSA-2021:5206?
RHSA-2021:5206 is associated with a remote code execution vulnerability in Log4j when using JMSAppender.
Is upgrading to Log4j 1.2.17-17.el7_4 mandatory due to RHSA-2021:5206?
Yes, upgrading to Log4j 1.2.17-17.el7_4 or the respective patched version is mandatory to mitigate risks from RHSA-2021:5206.