ubuntu-security-announce Digest, Vol 102, Issue 10

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Today's Topics:

1. [USN-1771-1] OpenStack Nova vulnerabilities (Jamie Strandboge)
2. [USN-1772-1] OpenStack Keystone vulnerability (Jamie Strandboge)


----------------------------------------------------------------------

Message: 1
Date: Wed, 20 Mar 2013 15:30:32 -0500
From: Jamie Strandboge <jamie@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1771-1] OpenStack Nova vulnerabilities
Message-ID: <514A1C68.8040000@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"


==========================================================================
Ubuntu Security Notice USN-1771-1
March 20, 2013

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

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

- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10

Summary:

Two security issues were fixed in Nova.

Software Description:
- nova: OpenStack Compute cloud infrastructure

Details:

Loganathan Parthipan discovered that Nova did not properly validate VNC
tokens after an instance was deleted. An authenticated attacker could
exploit this to access other virtual machines under certain circumstances.
This issue did not affect Ubuntu 11.10. (CVE-2013-0335)

Vish Ishaya discovered that Nova did not always enforce quotas on fixed
IPs. An authenticated attacker could exploit this to cause a denial of
service via resource consumption. Nova will now enforce a quota limit of
10 fixed IPs per instance, which is configurable via 'quota_fixed_ips'
in /etc/nova/nova.conf. (CVE-2013-1838)

Update instructions:

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

Ubuntu 12.10:
python-nova
2012.2.1+stable-20121212-a99a802e-0ubuntu1.4

Ubuntu 12.04 LTS:
python-nova
2012.1.3+stable-20120827-4d2a4afe-0ubuntu1.4

Ubuntu 11.10:
python-nova 2011.3-0ubuntu6.13

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

References:
http://www.ubuntu.com/usn/usn-1771-1
CVE-2013-0335, CVE-2013-1838

Package Information:

https://launchpad.net/ubuntu/+source/nova/2012.2.1+stable-20121212-a99a802e-0ubuntu1.4

https://launchpad.net/ubuntu/+source/nova/2012.1.3+stable-20120827-4d2a4afe-0ubuntu1.4
https://launchpad.net/ubuntu/+source/nova/2011.3-0ubuntu6.13




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Message: 2
Date: Wed, 20 Mar 2013 15:55:03 -0500
From: Jamie Strandboge <jamie@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1772-1] OpenStack Keystone vulnerability
Message-ID: <514A2227.3060101@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"


==========================================================================
Ubuntu Security Notice USN-1772-1
March 20, 2013

keystone vulnerability
==========================================================================

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

- Ubuntu 12.10

Summary:

Under certain configurations, Keystone would allow unintended access over
the network.

Software Description:
- keystone: OpenStack identity service

Details:

Guang Yee discovered that Keystone would not always perform all
verification checks when configured to use PKI. If the keystone server was
configured to use PKI and services or users requested online verification,
an attacker could potentially exploit this to bypass revocation checks.
Keystone uses UUID tokens by default in Ubuntu.

Update instructions:

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

Ubuntu 12.10:
python-keystone 2012.2.1-0ubuntu1.3

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

References:
http://www.ubuntu.com/usn/usn-1772-1
CVE-2013-1865

Package Information:
https://launchpad.net/ubuntu/+source/keystone/2012.2.1-0ubuntu1.3




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