What is the severity of RHSA-2017:2423?

The severity of RHSA-2017:2423 is classified as important.

How do I fix RHSA-2017:2423?

To fix RHSA-2017:2423, you should upgrade to log4j version 1.2.17-16.el7_4 or later.

What vulnerability does RHSA-2017:2423 address?

RHSA-2017:2423 addresses a remote logging vulnerability in log4j that allows deserialization of log events.

Which software packages are affected by RHSA-2017:2423?

The affected packages for RHSA-2017:2423 include log4j, log4j-javadoc, and log4j-manual.

Is RHSA-2017:2423 applicable to all Red Hat users?

RHSA-2017:2423 is applicable to users running Red Hat systems with the affected log4j versions.

Vulnerability/
RHSA-2017:2423

7/8/2017

RHSA-2017:2423: Important: log4j security update

First published: Mon Aug 07 2017(Updated: )

Log4j is a tool to help the programmer output log statements to a variety of output targets.<br>Security Fix(es):<br><li> It was found that when using remote logging with log4j socket server the log4j server would deserialize any log event received via TCP or UDP. An attacker could use this flaw to send a specially crafted log event that, during deserialization, would execute arbitrary code in the context of the logger application. (CVE-2017-5645)</li>

Affected Software	Affected Version	How to fix
redhat/log4j	<1.2.17-16.el7_4	1.2.17-16.el7_4
redhat/log4j	<1.2.17-16.el7_4	1.2.17-16.el7_4
redhat/log4j-javadoc	<1.2.17-16.el7_4	1.2.17-16.el7_4
redhat/log4j-manual	<1.2.17-16.el7_4	1.2.17-16.el7_4

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Frequently Asked Questions

What is the severity of RHSA-2017:2423?
The severity of RHSA-2017:2423 is classified as important.
How do I fix RHSA-2017:2423?
To fix RHSA-2017:2423, you should upgrade to log4j version 1.2.17-16.el7_4 or later.
What vulnerability does RHSA-2017:2423 address?
RHSA-2017:2423 addresses a remote logging vulnerability in log4j that allows deserialization of log events.
Which software packages are affected by RHSA-2017:2423?
The affected packages for RHSA-2017:2423 include log4j, log4j-javadoc, and log4j-manual.
Is RHSA-2017:2423 applicable to all Red Hat users?
RHSA-2017:2423 is applicable to users running Red Hat systems with the affected log4j versions.

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