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Ubuntu Security Notice USN-1153-1

Ubuntu Security Notice USN-1153-1
Posted Jun 16, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1153-1 - Chris Evans discovered that libxml2 incorrectly handled memory allocation. If an application using libxml2 opened a specially crafted XML file, an attacker could cause a denial of service or possibly execute code as the user invoking the program.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2011-1944
MD5 | a3dbee21ab3ca8b12c99fa688d39abd2

Ubuntu Security Notice USN-1153-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-1153-1
June 16, 2011

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

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

- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

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

Software Description:
- libxml2: GNOME XML library

Details:

Chris Evans discovered that libxml2 incorrectly handled memory allocation.
If an application using libxml2 opened a specially crafted XML file, an
attacker could cause a denial of service or possibly execute code as the
user invoking the program.

Update instructions:

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

Ubuntu 11.04:
libxml2 2.7.8.dfsg-2ubuntu0.1

Ubuntu 10.10:
libxml2 2.7.7.dfsg-4ubuntu0.2

Ubuntu 10.04 LTS:
libxml2 2.7.6.dfsg-1ubuntu1.2

Ubuntu 8.04 LTS:
libxml2 2.6.31.dfsg-2ubuntu1.6

After a standard system update you need to restart your session to make
all the necessary changes.

References:
CVE-2011-1944

Package Information:
https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-2ubuntu0.1
https://launchpad.net/ubuntu/+source/libxml2/2.7.7.dfsg-4ubuntu0.2
https://launchpad.net/ubuntu/+source/libxml2/2.7.6.dfsg-1ubuntu1.2
https://launchpad.net/ubuntu/+source/libxml2/2.6.31.dfsg-2ubuntu1.6


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