Important: log4j security update

Topic

An update for log4j is now available for Red Hat Enterprise Linux 6 Extended Lifecycle Support.

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: deserialization of untrusted data in SocketServer (CVE-2019-17571)

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 - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 1785616 - CVE-2019-17571 log4j: deserialization of untrusted data in SocketServer

CVEs

• CVE-2019-17571

References

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