RHSA-2022:0442 - Security Advisory

Topic

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, Red Hat Enterprise Linux 7.4 Advanced Update Support, Red Hat Enterprise Linux 7.6 Advanced Update Support, Red Hat Enterprise Linux 7.6 Telco Extended Update Support, Red Hat Enterprise Linux 7.6 Update Services for SAP Solutions, Red Hat Enterprise Linux 7.7 Advanced Update Support, Red Hat Enterprise Linux 7.7 Telco Extended Update Support, and Red Hat Enterprise Linux 7.7 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Log4j is a tool to help the programmer output log statements to a variety of output targets.

Security Fix(es):

• log4j: SQL injection in Log4j 1.x when application is configured to use JDBCAppender (CVE-2022-23305)
• log4j: Unsafe deserialization flaw in Chainsaw log viewer (CVE-2022-23307)
• log4j: Remote code execution in Log4j 1.x when application is configured to use JMSSink (CVE-2022-23302)

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.

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

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Server - AUS 7.7 x86_64
• Red Hat Enterprise Linux Server - AUS 7.6 x86_64
• Red Hat Enterprise Linux Server - AUS 7.4 x86_64
• Red Hat Enterprise Linux Server - AUS 7.3 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux Server - TUS 7.7 x86_64
• Red Hat Enterprise Linux Server - TUS 7.6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.7 ppc64le
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.6 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.6 x86_64

Fixes

• BZ - 2041949 - CVE-2022-23302 log4j: Remote code execution in Log4j 1.x when application is configured to use JMSSink
• BZ - 2041959 - CVE-2022-23305 log4j: SQL injection in Log4j 1.x when application is configured to use JDBCAppender
• BZ - 2041967 - CVE-2022-23307 log4j: Unsafe deserialization flaw in Chainsaw log viewer

CVEs

• CVE-2022-23302
• CVE-2022-23305
• CVE-2022-23307

References

• https://access.redhat.com/security/updates/classification/#important