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Sicherheit: Preisgabe von Informationen in LXC (Aktualisierung)
Aktuelle Meldungen Distributionen
Name: Preisgabe von Informationen in LXC (Aktualisierung)
ID: USN-2753-3
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 LTS
Datum: Di, 6. Oktober 2015, 07:01
Referenzen: Keine Angabe
Applikationen: LXC
Update von: Preisgabe von Informationen in LXC

Originalnachricht


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==========================================================================
Ubuntu Security Notice USN-2753-3
October 05, 2015

lxc regression
==========================================================================

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

- Ubuntu 14.04 LTS

Summary:

USN-2753-1 introduced a regression in LXC.

Software Description:
- lxc: Linux Containers userspace tools

Details:

USN-2753-1 fixed a vulnerability in LXC. The update caused a regression
that prevented some containers from starting. This regression only
affected containers that had a path that contained a '/./' directory
specified as a bind mount target in their configuration file. This
update fixes the problem. We apologize for the inconvenience.

Original advisory details:

Roman Fiedler discovered a directory traversal flaw in lxc-start. A local
attacker with access to an LXC container could exploit this flaw to run
programs inside the container that are not confined by AppArmor or expose
unintended files in the host to the container.

Update instructions:

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

Ubuntu 14.04 LTS:
liblxc1 1.0.7-0ubuntu0.7
lxc 1.0.7-0ubuntu0.7
lxc-dev 1.0.7-0ubuntu0.7
lxc-templates 1.0.7-0ubuntu0.7
lxc-tests 1.0.7-0ubuntu0.7
python3-lxc 1.0.7-0ubuntu0.7

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

References:
http://www.ubuntu.com/usn/usn-2753-3
http://www.ubuntu.com/usn/usn-2753-1
https://launchpad.net/bugs/1501491

Package Information:
https://launchpad.net/ubuntu/+source/lxc/1.0.7-0ubuntu0.7


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