Several security issues were fixed in libxml2.
Matias Brutti discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to expose sensitive information. (CVE-2016-9318)
14 August 2018
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in libxml2.
Matias Brutti discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to expose sensitive information. (CVE-2016-9318)
It was discovered that libxml2 incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2017-16932)
It was discovered that libxml2 incorrectly handled certain files. An attacker could possibly use this issue to cause a denial of service. (CVE-2017-18258, CVE-2018-14404, CVE-2018-14567)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.