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Red Hat Enterprise Linux Security Advisory RHSA-2021-5206: Log4j RCE Notice

red hat
Calendar Grey December 20, 2021
Dist Redhat Esm H88
Oracle issued a patch for DBMS in several Cloud Infrastructure versions to address vulnerabilities related to unauthorized data access.
An update for log4j is now available for Red Hat Enterprise Linux 6 Extended Lifecycle Support, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 7.3 Advanced Update Support, Re...

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

Log4j is a tool to help the programmer output log statements to a variety of output targets.
Security Fix(es):
* log4j: Remote code execution in Log4j 1.x when application is configured to use JMSAppender (CVE-2021-4104)
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.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat remote code execution CVE log4j

References

https://access.redhat.com/security/cve/CVE-2021-4104 https://access.redhat.com/security/updates/classification#moderate https://access.redhat.com/security/vulnerabilities/RHSB-2021-009

Package List

Red Hat Enterprise Linux Server (v. 6 ELS):
Source: log4j-1.2.14-6.5.el6_10.src.rpm
i386: log4j-1.2.14-6.5.el6_10.i686.rpm log4j-debuginfo-1.2.14-6.5.el6_10.i686.rpm
s390x: log4j-1.2.14-6.5.el6_10.s390x.rpm log4j-debuginfo-1.2.14-6.5.el6_10.s390x.rpm
x86_64: log4j-1.2.14-6.5.el6_10.x86_64.rpm log4j-debuginfo-1.2.14-6.5.el6_10.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6 ELS):
i386: log4j-debuginfo-1.2.14-6.5.el6_10.i686.rpm log4j-javadoc-1.2.14-6.5.el6_10.i686.rpm log4j-manual-1.2.14-6.5.el6_10.i686.rpm
s390x: log4j-debuginfo-1.2.14-6.5.el6_10.s390x.rpm log4j-javadoc-1.2.14-6.5.el6_10.s390x.rpm log4j-manual-1.2.14-6.5.el6_10.s390x.rpm
x86_64: log4j-debuginfo-1.2.14-6.5.el6_10.x86_64.rpm log4j-javadoc-1.2.14-6.5.el6_10.x86_64.rpm log4j-manual-1.2.14-6.5.el6_10.x86_64.rpm
Red Hat Enterprise Linux Client (v. 7):
Source: log4j-1.2.17-17.el7_4.src.rpm
noarch: log4j-1.2.17-17.el7_4.noarch.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
noarch: log4j-javadoc-1.2.17-17.el7_4.noarch.rpm log4j-manual-1.2.17-17.el7_4.noarch.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: log4j-1.2.17-17.el7_4.src.rpm
noarch: log4j-1.2.17-17.el7_4.noarch.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
noarch: log4j-javadoc-1.2.17-17.el7_4.noarch.rpm

Read the Full Advisory


Advisory ID: RHSA-2021:5206-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:5206
Issue date: 2021-12-20

Topic

An update for log4j is now available for Red Hat Enterprise Linux 6Extended Lifecycle Support, Red Hat Enterprise Linux 7, Red Hat EnterpriseLinux 7.3 Advanced Update Support, Red Hat Enterprise Linux 7.4 AdvancedUpdate Support, Red Hat Enterprise Linux 7.6 Advanced Update Support, RedHat Enterprise Linux 7.6 Telco Extended Update Support, Red Hat EnterpriseLinux 7.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 7.7Advanced Update Support, Red Hat Enterprise Linux 7.7 Telco Extended UpdateSupport, and Red Hat Enterprise Linux 7.7 Update Services for SAPSolutions.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat remote code execution CVE log4j

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch

Red Hat Enterprise Linux Client Optional (v. 7) - noarch

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch

Red Hat Enterprise Linux Server (v. 6 ELS) - i386, s390x, x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch

Red Hat Enterprise Linux Server AUS (v. 7.3) - noarch

Red Hat Enterprise Linux Server AUS (v. 7.4) - noarch

Red Hat Enterprise Linux Server AUS (v. 7.6) - noarch

Red Hat Enterprise Linux Server AUS (v. 7.7) - noarch

Red Hat Enterprise Linux Server E4S (v. 7.6) - noarch

Red Hat Enterprise Linux Server E4S (v. 7.7) - noarch

Red Hat Enterprise Linux Server Optional (v. 6 ELS) - i386, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - noarch

Red Hat Enterprise Linux Server Optional AUS (v. 7.3) - noarch

Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - noarch

Red Hat Enterprise Linux Server Optional AUS (v. 7.6) - noarch

Red Hat Enterprise Linux Server Optional AUS (v. 7.7) - noarch

Red Hat Enterprise Linux Server Optional E4S (v. 7.6) - noarch

Red Hat Enterprise Linux Server Optional TUS (v. 7.6) - noarch

Red Hat Enterprise Linux Server Optional TUS (v. 7.7) - noarch

Red Hat Enterprise Linux Server TUS (v. 7.6) - noarch

Red Hat Enterprise Linux Server TUS (v. 7.7) - noarch

Red Hat Enterprise Linux Workstation (v. 7) - noarch

Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch

Bugs Fixed

2031667 - CVE-2021-4104 log4j: Remote code execution in Log4j 1.x when application is configured to use JMSAppender

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