Debian Security Advisory

DSA-5307-1 libcommons-net-java -- security update

Date Reported:
29 Dec 2022
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 1025910.
In Mitre's CVE dictionary: CVE-2021-37533.
More information:

ZeddYu Lu discovered that the FTP client of Apache Commons Net, a Java client API for basic Internet protocols, trusts the host from PASV response by default. A malicious server can redirect the Commons Net code to use a different host, but the user has to connect to the malicious server in the first place. This may lead to leakage of information about services running on the private network of the client.

For the stable distribution (bullseye), this problem has been fixed in version 3.6-1+deb11u1.

We recommend that you upgrade your libcommons-net-java packages.

For the detailed security status of libcommons-net-java please refer to its security tracker page at: