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List: ubuntu-security-announce
Subject: [USN-6037-1] Apache Commons Net vulnerability
From: George-Andrei Iosif <andrei.iosif () canonical ! com>
Date: 2023-04-28 15:05:07
Message-ID: 0f6c9071-714a-0bbf-e520-b4e2cde35c91 () canonical ! com
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==========================================================================
Ubuntu Security Notice USN-6037-1
April 28, 2023
Apache Commons Net vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
Summary:
Apache Commons Net could be made to expose sensitive information
over the network.
Software Description:
- libcommons-net-java: Apache Commons Net - Java client API for basic
Internet protocols
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.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.10:
libcommons-net-java 3.6-1+deb11u1build0.22.10.1
Ubuntu 22.04 LTS:
libcommons-net-java 3.6-1+deb11u1build0.22.04.1
Ubuntu 20.04 LTS:
libcommons-net-java 3.6-1+deb11u1build0.20.04.1
Ubuntu 18.04 LTS:
libcommons-net-java 3.6-1+deb11u1build0.18.04.1
Ubuntu 16.04 ESM:
libcommons-net-java 3.4-2ubuntu2+esm1
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-6037-1
<https://ubuntu.com/security/notices/USN-6037-1>
CVE-2021-37533
Package Information:
https://launchpad.net/ubuntu/+source/libcommons-net-java/3.6-1+deb11u1build0.22.10.1
<https://launchpad.net/ubuntu/+source/libcommons-net-java/3.6-1+deb11u1build0.22.10.1>
https://launchpad.net/ubuntu/+source/libcommons-net-java/3.6-1+deb11u1build0.22.04.1
<https://launchpad.net/ubuntu/+source/libcommons-net-java/3.6-1+deb11u1build0.22.04.1>
https://launchpad.net/ubuntu/+source/libcommons-net-java/3.6-1+deb11u1build0.20.04.1
<https://launchpad.net/ubuntu/+source/libcommons-net-java/3.6-1+deb11u1build0.20.04.1>
https://launchpad.net/ubuntu/+source/libcommons-net-java/3.6-1+deb11u1build0.18.04.1
<https://launchpad.net/ubuntu/+source/libcommons-net-java/3.6-1+deb11u1build0.18.04.1>
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