1. Ubuntu Security Notices
  2. USN-6037-1

USN-6037-1: Apache Commons Net vulnerability

Publication date

28 April 2023

Overview

Apache Commons Net could be made to expose sensitive information over the network.

Releases

Packages

Details

ZeddYu Lu discovered that the FTP client from Apache Commons Net trusted
the host from PASV responses by default. A remote attacker with a
malicious FTP server could redirect the client to another server, which
could possibly result in leaked information about services running on the
private network of the client.

ZeddYu Lu discovered that the FTP client from Apache Commons Net trusted
the host from PASV responses by default. A remote attacker with a
malicious FTP server could redirect the client to another server, which
could possibly result in leaked information about services running on the
private network of the client.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
22.10 kinetic libcommons-net-java –  3.6-1+deb11u1build0.22.10.1
22.04 jammy libcommons-net-java –  3.6-1+deb11u1build0.22.04.1
20.04 focal libcommons-net-java –  3.6-1+deb11u1build0.20.04.1
18.04 bionic libcommons-net-java –  3.6-1+deb11u1build0.18.04.1
16.04 xenial libcommons-net-java –  3.4-2ubuntu2+esm1  

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References

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