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Sicherheit: Denial of Service in libxml2
Aktuelle Meldungen Distributionen
Name: Denial of Service in libxml2
ID: USN-1376-1
Distribution: Ubuntu
Plattformen: Ubuntu 8.04 LTS, Ubuntu 10.04 LTS, Ubuntu 10.10, Ubuntu 11.04, Ubuntu 11.10
Datum: Di, 28. Februar 2012, 06:34
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0841

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==========================================================================
Ubuntu Security Notice USN-1376-1
February 27, 2012

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

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

- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

libxml2 could be made to cause a denial of service by consuming excessive
CPU resources.

Software Description:
- libxml2: GNOME XML library

Details:

Juraj Somorovsky discovered that libxml2 was vulnerable to hash table
collisions. If a user or application linked against libxml2 were tricked
into opening a specially crafted XML file, an attacker could cause a
denial of service.

Update instructions:

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

Ubuntu 11.10:
libxml2 2.7.8.dfsg-4ubuntu0.2

Ubuntu 11.04:
libxml2 2.7.8.dfsg-2ubuntu0.3

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

Ubuntu 10.04 LTS:
libxml2 2.7.6.dfsg-1ubuntu1.4

Ubuntu 8.04 LTS:
libxml2 2.6.31.dfsg-2ubuntu1.8

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

References:
http://www.ubuntu.com/usn/usn-1376-1
CVE-2012-0841

Package Information:
https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-4ubuntu0.2
https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-2ubuntu0.3
https://launchpad.net/ubuntu/+source/libxml2/2.7.7.dfsg-4ubuntu0.4
https://launchpad.net/ubuntu/+source/libxml2/2.7.6.dfsg-1ubuntu1.4
https://launchpad.net/ubuntu/+source/libxml2/2.6.31.dfsg-2ubuntu1.8



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