rdflib vulnerability

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

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

* CVE-2019-7653

--- Mystic BBS v1.12 A46 (Linux/64)
* Origin: BZ&BZ BBS (21:4/110)