Fedora 34: 2021-66d6c484f3 Critical: Log4j Remote Code Execution Fix

Log4j is a tool to help the programmer output log statements to a

variety of output targets.

This update provides log4j 2.16.0, to address the critical vulnerability

CVE-2021-44228 ("Log4Shell"). Note with 2.16.0, JNDI is entirely disabled by

default; to use it, you must set `log4j2.enableJndi` (please carefully consider

potential security issues before doing so). The updated jansi adds (back) a

feature, `AnsiRenderer`, which the newer log4j requires; this is the only change

to jansi. For other changes in log4j 2.16.0, see the [upstream

changelog]().

Most changes are compatible enhancements or bug fixes, but there may be some

behaviour changes.

* Mon Dec 13 2021 Adam Williamson - 2.16.0-1

- Update to 2.16.0 (fixes critical CVE-2021-44228)

[ 1 ] Bug #2030945 - CVE-2021-44228 log4j: log4j-core: Remote code execution in Log4j 2.x when logs contain an attacker-controlled string value [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=2030945

su -c 'dnf upgrade --advisory FEDORA-2021-66d6c484f3' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

https://fedoraproject.org/security/

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