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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.

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Releases

Packages

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.

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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.

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Update instructions

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

Ubuntu 16.04

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

References

Related notices

  • USN-5223-1: liblog4j1.2-java, apache-log4j1.2, liblog4j1.2-java-doc

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Further reading