USN-3235-1: libxml2 vulnerabilities

16 March 2017

Several security issues were fixed in libxml2.

Releases

Packages

Details

It was discovered that libxml2 incorrectly handled format strings. If a
user or automated system were tricked into opening a specially crafted
document, an attacker could possibly cause libxml2 to crash, resulting in a
denial of service. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04
LTS, and Ubuntu 16.04 LTS. (CVE-2016-4448)

It was discovered that libxml2 incorrectly handled certain malformed
documents. If a user or automated system were tricked into opening a
specially crafted document, an attacker could cause libxml2 to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2016-4658)

Nick Wellnhofer discovered that libxml2 incorrectly handled certain
malformed documents. If a user or automated system were tricked into
opening a specially crafted document, an attacker could cause libxml2 to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2016-5131)

Update instructions

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

Ubuntu 16.10
Ubuntu 16.04
Ubuntu 14.04
Ubuntu 12.04

After a standard system update you need to reboot your computer to make
all the necessary changes.

Related notices

  • USN-3041-1: oxideqt-codecs, liboxideqt-qmlplugin, liboxideqtquick-dev, oxideqt-codecs-extra, liboxideqtcore0, oxideqmlscene, oxideqt-chromedriver, oxide-qt, liboxideqtquick0, liboxideqtcore-dev