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Ubuntu Security Notice USN-1587-1

Ubuntu Security Notice USN-1587-1
Posted Sep 27, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1587-1 - Juri Aedla discovered that libxml2 incorrectly handled certain memory operations. If a user or application linked against libxml2 were tricked into opening a specially crafted XML file, an attacker could cause the application to crash or possibly execute arbitrary code with the privileges of the user invoking the program.

tags | advisory, arbitrary
systems | linux, ubuntu
advisories | CVE-2012-2807
MD5 | 27154d3f50a0a731159fb58a46d4e2ff

Ubuntu Security Notice USN-1587-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1587-1
September 27, 2012

libxml2 vulnerability
============================================================================

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

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

Applications using libxml2 could be made to crash or run programs as your
login if they opened a specially crafted file.

Software Description:
- libxml2: GNOME XML library

Details:

Juri Aedla discovered that libxml2 incorrectly handled certain memory
operations. If a user or application linked against libxml2 were tricked
into opening a specially crafted XML file, an attacker could cause the
application to crash or possibly execute arbitrary code with the privileges
of the user invoking the program.

Update instructions:

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

Ubuntu 12.04 LTS:
libxml2 2.7.8.dfsg-5.1ubuntu4.2

Ubuntu 11.10:
libxml2 2.7.8.dfsg-4ubuntu0.4

Ubuntu 11.04:
libxml2 2.7.8.dfsg-2ubuntu0.5

Ubuntu 10.04 LTS:
libxml2 2.7.6.dfsg-1ubuntu1.6

Ubuntu 8.04 LTS:
libxml2 2.6.31.dfsg-2ubuntu1.10

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

References:
http://www.ubuntu.com/usn/usn-1587-1
CVE-2012-2807

Package Information:
https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-5.1ubuntu4.2
https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-4ubuntu0.4
https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-2ubuntu0.5
https://launchpad.net/ubuntu/+source/libxml2/2.7.6.dfsg-1ubuntu1.6
https://launchpad.net/ubuntu/+source/libxml2/2.6.31.dfsg-2ubuntu1.10

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