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Ubuntu Security Notice USN-1497-1

Ubuntu Security Notice USN-1497-1
Posted Jul 3, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1497-1 - Matthias Weckbecker discovered that, when using the OpenStack API to setup libvirt-based hypervisors, an authenticated user could inject files in arbitrary locations on the file system of the host running Nova. A remote attacker could use this to gain root privileges. This issue only affects Ubuntu 12.04 LTS. Padraig Brady discovered that an authenticated user could corrupt arbitrary files of the host running Nova. A remote attacker could use this to cause a denial of service or possibly gain privileges. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, root
systems | linux, ubuntu
advisories | CVE-2012-3360, CVE-2012-3361, CVE-2012-3360, CVE-2012-3361
SHA-256 | 6e12798a2feb912d78105cce29f97f758bf35dbc4d8aa8f5c10843511e3f1435

Ubuntu Security Notice USN-1497-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-1497-1
July 03, 2012

nova vulnerabilities
==========================================================================

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

- Ubuntu 12.04 LTS
- Ubuntu 11.10

Summary:

Nova could be made to overwrite or corrupt arbitrary files in the
compute host file system.

Software Description:
- nova: OpenStack Compute cloud infrastructure

Details:

Matthias Weckbecker discovered that, when using the OpenStack API to
setup libvirt-based hypervisors, an authenticated user could inject
files in arbitrary locations on the file system of the host running
Nova. A remote attacker could use this to gain root privileges. This
issue only affects Ubuntu 12.04 LTS. (CVE-2012-3360)

Pádraig Brady discovered that an authenticated user could corrupt
arbitrary files of the host running Nova. A remote attacker could
use this to cause a denial of service or possibly gain privileges.
(CVE-2012-3361)

Update instructions:

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

Ubuntu 12.04 LTS:
python-nova 2012.1+stable~20120612-3ee026e-0ubuntu1.1

Ubuntu 11.10:
python-nova 2011.3-0ubuntu6.9

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

References:
http://www.ubuntu.com/usn/usn-1497-1
CVE-2012-3360, CVE-2012-3361

Package Information:
https://launchpad.net/ubuntu/+source/nova/2012.1+stable~20120612-3ee026e-0ubuntu1.1
https://launchpad.net/ubuntu/+source/nova/2011.3-0ubuntu6.9

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