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Ubuntu Security Notice USN-3513-1

Ubuntu Security Notice USN-3513-1
Posted Dec 13, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3513-1 - It was discovered that libxml2 incorrectly handled certain files. An attacker could use this issue with specially constructed XML data to cause libxml2 to consume resources, leading to a denial of service.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2017-15412
SHA-256 | 77243f6e2f2310fa0e4cb8dc53e152b41ac9a0d462f227eb49ef82744d2616f1

Ubuntu Security Notice USN-3513-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3513-1
December 13, 2017

libxml2 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:

libxml2 could be made to crash or run arbitrary code if it
opened a specially crafted file.

Software Description:
- libxml2: GNOME XML library

Details:

It was discovered that libxml2 incorrecty handled certain files. An
attacker could use this issue with specially constructed XML data to
cause libxml2 to consume resources, leading to a denial of service.

Update instructions:

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

Ubuntu 17.10:
libxml2 2.9.4+dfsg1-4ubuntu1.2
libxml2-utils 2.9.4+dfsg1-4ubuntu1.2
python-libxml2 2.9.4+dfsg1-4ubuntu1.2
python3-libxml2 2.9.4+dfsg1-4ubuntu1.2

Ubuntu 17.04:
libxml2 2.9.4+dfsg1-2.2ubuntu0.3
libxml2-utils 2.9.4+dfsg1-2.2ubuntu0.3
python-libxml2 2.9.4+dfsg1-2.2ubuntu0.3
python3-libxml2 2.9.4+dfsg1-2.2ubuntu0.3

Ubuntu 16.04 LTS:
libxml2 2.9.3+dfsg1-1ubuntu0.5
libxml2-utils 2.9.3+dfsg1-1ubuntu0.5
python-libxml2 2.9.3+dfsg1-1ubuntu0.5

Ubuntu 14.04 LTS:
libxml2 2.9.1+dfsg1-3ubuntu4.12
libxml2-utils 2.9.1+dfsg1-3ubuntu4.12
python-libxml2 2.9.1+dfsg1-3ubuntu4.12

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

References:
https://www.ubuntu.com/usn/usn-3513-1
CVE-2017-15412

Package Information:
https://launchpad.net/ubuntu/+source/libxml2/2.9.4+dfsg1-4ubuntu1.2
https://launchpad.net/ubuntu/+source/libxml2/2.9.4+dfsg1-2.2ubuntu0.3
https://launchpad.net/ubuntu/+source/libxml2/2.9.3+dfsg1-1ubuntu0.5
https://launchpad.net/ubuntu/+source/libxml2/2.9.1+dfsg1-3ubuntu4.12
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