[USN-4619-1] dom4j vulnerability

-----BEGIN PGP SIGNATURE-----

iQEzBAEBCAAdFiEElnO/d49FoUPK9fwytGdj0GOh2+wFAl+kNCQACgkQtGdj0GOh
2+xCowf/Zs3qZaNX+VR0R05ulShFcUxwIQ219nC6gEyDc3eInwhMmEopx9fOddOI
PHPbmsQABY2osHA3Ig1x0BJhZdWMIfEdquR0wxLbU02QB24yXxAwfo/K+CwirEH1
q0aLnmSTA4I+Q63MDpz0bAEbGKATv4PUss1cwPIuC8lDNv7wQIEjBdtYpkl3MsQR
TiX9wIfrBOU3PqJZV/DGLG4xGnPNwnM68mhDbM4hb/7QRrviQ2poCr3wmSVNC38B
chBdkL/STFmedcgvWhXuSO6R6eMrkxX5IYk7fgF9VY4F0IHnA/3b3AoB8ibKNNW9
EqVTJtelGiA0Qh7EGBujqwpZukgfbg==
=c1JL
-----END PGP SIGNATURE-----
==========================================================================
Ubuntu Security Notice USN-4619-1
November 05, 2020

dom4j vulnerability
==========================================================================

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

- Ubuntu 16.04 LTS

Summary:

dom4j could be made to crash or run programs if it received a specially
crafted file.

Software Description:
- dom4j: Flexible XML framework for Java

Details:

Mário Areias discovered that dom4j did not properly validate XML document
elements. An attacker could exploit this with a crafted XML file to cause
dom4j to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2018-1000632)

Update instructions:

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

Ubuntu 16.04 LTS:
libdom4j-java 1.6.1+dfsg.3-2ubuntu1.2

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4619-1
CVE-2018-1000632

Package Information:
https://launchpad.net/ubuntu/+source/dom4j/1.6.1+dfsg.3-2ubuntu1.2