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USN-5998-1: Apache Log4j vulnerabilities

5 April 2023

Several security issues were fixed in Apache Log4j.

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Details

It was discovered that the SocketServer component of Apache Log4j 1.2
incorrectly handled deserialization. An attacker could possibly use this issue
to execute arbitrary code. This issue only affected Ubuntu 16.04 ESM.
(CVE-2019-17571)

It was discovered that the JMSSink component of Apache Log4j 1.2 incorrectly
handled deserialization. An attacker could possibly use this issue to execute
arbitrary code. (CVE-2022-23302)

It was discovered that Apache Log4j 1.2 incorrectly handled certain SQL
statements. A remote attacker could possibly use this issue to perform an SQL
injection attack and alter the database. This issue was only fixed in Ubuntu
18.04 LTS and Ubuntu 20.04 LTS. (CVE-2022-23305)

It was discovered that the Chainsaw component of Apache Log4j 1.2 incorrectly
handled deserialization. An attacker could possibly use this issue to execute
arbitrary code. This issue was only fixed in Ubuntu 18.04 LTS and Ubuntu 20.04
LTS. (CVE-2022-23307)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

In general, a standard system update will make all the necessary changes.

Related notices

  • USN-4495-1: liblog4j1.2-java-doc, apache-log4j1.2, liblog4j1.2-java