USN-5223-2: Apache Log4j 1.2 vulnerability
8 February 2022
Apache Log4j 1.2 could be made to crash or run programs if it received specially crafted input.
Releases
Packages
- apache-log4j1.2 - Java-based open-source logging tool
Details
USN-5223-1 fixed a vulnerability in Apache Log4j 1.2. This update
provides the corresponding update for Ubuntu 16.04 ESM.
Original advisory details:
It was discovered that Apache Log4j 1.2 was vulnerable to deserialization of
untrusted data if the configuration file was editable. An attacker could use
this vulnerability to cause a DoS or possibly execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04
-
liblog4j1.2-java
-
1.2.17-7ubuntu1+esm1
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-5223-1: apache-log4j1.2, liblog4j1.2-java-doc, liblog4j1.2-java