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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: "ubuntu-security-announce@lists.ubuntu.com"
 <ubuntu-security-announce@lists.ubuntu.com>
Message-ID: <e7f0520b-6dd8-8aaa-afc6-56f1b0a544c6@canonical.com>
Subject: [USN-3494-1] XML::LibXML vulnerability

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==========================================================================
Ubuntu Security Notice USN-3494-1
November 27, 2017

libxml-libxml-perl vulnerability
==========================================================================

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

- Ubuntu 17.10
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

XML::LibXML could be made to crash or run programs if it processed
specially crafted input.

Software Description:
- libxml-libxml-perl: Perl interface to the libxml2 library

Details:

It was discovered that XML::LibXML incorrectly handled memory when
processing a replaceChild call. A remote attacker could possibly use this
issue to execute arbitrary code.

Update instructions:

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

Ubuntu 17.10:
  libxml-libxml-perl              2.0128+dfsg-3ubuntu0.1

Ubuntu 17.04:
  libxml-libxml-perl              2.0128+dfsg-1ubuntu0.1

Ubuntu 16.04 LTS:
  libxml-libxml-perl              2.0123+dfsg-1ubuntu0.1

Ubuntu 14.04 LTS:
  libxml-libxml-perl              2.0108+dfsg-1ubuntu0.2

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

References:
  https://www.ubuntu.com/usn/usn-3494-1
  CVE-2017-10672

Package Information:
  https://launchpad.net/ubuntu/+source/libxml-libxml-perl/2.0128+dfsg-3ubuntu0.1
  https://launchpad.net/ubuntu/+source/libxml-libxml-perl/2.0128+dfsg-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/libxml-libxml-perl/2.0123+dfsg-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/libxml-libxml-perl/2.0108+dfsg-1ubuntu0.2



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