A RDFLib security update has been released for Ubuntu Linux 16.04 LTS.

USN-4535-1: RDFLib vulnerability

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Ubuntu Security Notice USN-4535-1
September 23, 2020

rdflib vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS

Summary:

RDFLib could be made to made to execute arbitrary code if it were running
in a directory with a specially crafted file.

Software Description:
- rdflib: Pure Python package for working with RDF

Details:

Gabriel Corona discovered that RDFLib did not properly load modules on the
command-line. An attacker could possibly use this issue to cause RDFLib to
execute arbitrary code. (CVE-2019-7653)

Update instructions:

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

Ubuntu 16.04 LTS:
python-rdflib 4.1.2-3+deb8u1build0.16.04.1
python-rdflib-tools 4.1.2-3+deb8u1build0.16.04.1
python3-rdflib 4.1.2-3+deb8u1build0.16.04.1

After a standard system update you need to restart any applications that
make use of RDFLib to make all the necessary changes.

References:
  https://usn.ubuntu.com/4535-1
CVE-2019-7653

Package Information:
  https://launchpad.net/ubuntu/+source/rdflib/4.1.2-3+deb8u1build0.16.04.1