ubuntu-security-announce Digest, Vol 104, Issue 10

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Today's Topics:

1. [USN-1829-1] Linux kernel (EC2) vulnerabilities (John Johansen)
2. [USN-1830-1] OpenStack Keystone vulnerability (Jamie Strandboge)
3. [USN-1831-1] OpenStack Nova vulnerability (Jamie Strandboge)


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

Message: 1
Date: Thu, 16 May 2013 13:08:13 -0700
From: John Johansen <john.johansen@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1829-1] Linux kernel (EC2) vulnerabilities
Message-ID: <51953CAD.1070704@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"

==========================================================================
Ubuntu Security Notice USN-1829-1
May 16, 2013

linux-ec2 vulnerabilities
==========================================================================

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

- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux-ec2: Linux kernel for EC2

Details:

Mathias Krause discovered an information leak in the Linux kernel's ISO
9660 CDROM file system driver. A local user could exploit this flaw to
examine some of the kernel's heap memory. (CVE-2012-6549)

Mathias Krause discovered a flaw in xfrm_user in the Linux kernel. A local
attacker with NET_ADMIN capability could potentially exploit this flaw to
escalate privileges. (CVE-2013-1826)

A buffer overflow was discovered in the Linux Kernel's USB subsystem for
devices reporting the cdc-wdm class. A specially crafted USB device when
plugged-in could cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2013-1860)

An information leak was discovered in the Linux kernel's /dev/dvb device. A
local user could exploit this flaw to obtain sensitive information from the
kernel's stack memory. (CVE-2013-1928)

An information leak in the Linux kernel's dcb netlink interface was
discovered. A local user could obtain sensitive information by examining
kernel stack memory. (CVE-2013-2634)

Update instructions:

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

Ubuntu 10.04 LTS:
linux-image-2.6.32-352-ec2 2.6.32-352.65

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

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References:
http://www.ubuntu.com/usn/usn-1829-1
CVE-2012-6549, CVE-2013-1826, CVE-2013-1860, CVE-2013-1928,
CVE-2013-2634

Package Information:
https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-352.65

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Message: 2
Date: Thu, 16 May 2013 18:55:19 -0500
From: Jamie Strandboge <jamie@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1830-1] OpenStack Keystone vulnerability
Message-ID: <519571E7.1070504@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"


==========================================================================
Ubuntu Security Notice USN-1830-1
May 16, 2013

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

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

- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS

Summary:

Keystone would allow unintended access over the network.

Software Description:
- keystone: OpenStack identity service

Details:

Sam Stoelinga discovered that Keystone would not immediately invalidate
tokens when deleting users via the v2 API. A deleted user would be able to
continue to use resources until the token lifetime expired.

Update instructions:

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

Ubuntu 13.04:
python-keystone 1:2013.1-0ubuntu1.1

Ubuntu 12.10:
python-keystone
2012.2.3+stable-20130206-82c87e56-0ubuntu2.1

Ubuntu 12.04 LTS:
python-keystone
2012.1.3+stable-20130423-f48dd0fc-0ubuntu1.1

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

References:
http://www.ubuntu.com/usn/usn-1830-1
CVE-2013-2059

Package Information:
https://launchpad.net/ubuntu/+source/keystone/1:2013.1-0ubuntu1.1

https://launchpad.net/ubuntu/+source/keystone/2012.2.3+stable-20130206-82c87e56-0ubuntu2.1

https://launchpad.net/ubuntu/+source/keystone/2012.1.3+stable-20130423-f48dd0fc-0ubuntu1.1




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Message: 3
Date: Thu, 16 May 2013 18:59:53 -0500
From: Jamie Strandboge <jamie@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1831-1] OpenStack Nova vulnerability
Message-ID: <519572F9.4070107@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"


==========================================================================
Ubuntu Security Notice USN-1831-1
May 16, 2013

nova vulnerability
==========================================================================

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

- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS

Summary:

Nova could be made to crash the system if instances used a specially
crafted image.

Software Description:
- nova: OpenStack Compute cloud infrastructure

Details:

Loganathan Parthipan discovered that Nova did not verify the size of QCOW2
instance storage. An authenticated attacker could exploit this to cause a
denial of service by creating an image with a large virtual size with
little data, then filling the virtual disk.

Update instructions:

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

Ubuntu 13.04:
python-nova 1:2013.1-0ubuntu2.1

Ubuntu 12.10:
python-nova 2012.2.3-0ubuntu2.1

Ubuntu 12.04 LTS:
python-nova
2012.1.3+stable-20130423-e52e6912-0ubuntu1.1

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

References:
http://www.ubuntu.com/usn/usn-1831-1
CVE-2013-2096

Package Information:
https://launchpad.net/ubuntu/+source/nova/1:2013.1-0ubuntu2.1
https://launchpad.net/ubuntu/+source/nova/2012.2.3-0ubuntu2.1

https://launchpad.net/ubuntu/+source/nova/2012.1.3+stable-20130423-e52e6912-0ubuntu1.1




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