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Ubuntu Security Notice USN-2875-1
January 19, 2016

libxml2 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 15.10
– Ubuntu 15.04
– Ubuntu 14.04 LTS
– Ubuntu 12.04 LTS

Summary:

libxml2 could be made to crash if it opened a specially crafted file.

Software Description:
– libxml2: GNOME XML library

Details:

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 possibly cause libxml2 to
crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 15.10:
libxml2 2.9.2+zdfsg1-4ubuntu0.3

Ubuntu 15.04:
libxml2 2.9.2+dfsg1-3ubuntu0.3

Ubuntu 14.04 LTS:
libxml2 2.9.1+dfsg1-3ubuntu4.7

Ubuntu 12.04 LTS:
libxml2 2.7.8.dfsg-5.1ubuntu4.14

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

References:
http://www.ubuntu.com/usn/usn-2875-1
CVE-2015-7499, CVE-2015-8710

Package Information:
https://launchpad.net/ubuntu/+source/libxml2/2.9.2+zdfsg1-4ubuntu0.3
https://launchpad.net/ubuntu/+source/libxml2/2.9.2+dfsg1-3ubuntu0.3
https://launchpad.net/ubuntu/+source/libxml2/2.9.1+dfsg1-3ubuntu4.7
https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-5.1ubuntu4.14

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