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[SECURITY] [DLA 2870-1] apache-log4j2 security update

Debian LTS Advisory DLA-2870-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Markus Koschany
December 29, 2021                             https://wiki.debian.org/LTS

Package        : apache-log4j2
Version        : 2.12.4-0+deb9u1
CVE ID         : CVE-2021-44832
Debian Bug     : 1002813

Apache Log4j2, a Java Logging Framework, is vulnerable to a remote code
execution (RCE) attack where an attacker with permission to modify the logging
configuration file can construct a malicious configuration using a JDBC
Appender with a data source referencing a JNDI URI which can execute remote
code. This issue is fixed by limiting JNDI data source names to the java

For Debian 9 stretch, this problem has been fixed in version

We recommend that you upgrade your apache-log4j2 packages.

For the detailed security status of apache-log4j2 please refer to
its security tracker page at:

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

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