USN-4666-2: lxml vulnerability

USN-4666-2: lxml vulnerability

USN-4666-1 partially fixed a vulnerability in lxml, but an additional patch was needed. This update provides
the corresponding additional patch in order to properly fix the vulnerability.

Original advisory details:

It was discovered that lxml incorrectly handled certain HTML.
An attacker could possibly use this issue to cross-site scripting (XSS) attacks.
Source: USN-4666-2: lxml vulnerability