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

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

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

References:
  https://ubuntu.com/security/notices/USN-4535-1
  CVE-2019-7653

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