==========================================================================
Ubuntu Security Notice USN-2619-1
May 23, 2015

linux-lts-trusty vulnerability
==========================================================================

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

– Ubuntu 12.04 LTS

Summary:

The system could be made to crash under certain conditions.

Software Description:
– linux-lts-trusty: Linux hardware enablement kernel from Trusty

Details:

A flaw was discovered in the Linux kernel’s IPv4 networking when using TCP
fast open to initiate a connection. An unprivileged local user could
exploit this flaw to cause a denial of service (system crash).

Update instructions:

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

Ubuntu 12.04 LTS:
linux-image-3.13.0-53-generic 3.13.0-53.89~precise1
linux-image-3.13.0-53-generic-lpae 3.13.0-53.89~precise1

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

References:
http://www.ubuntu.com/usn/usn-2619-1
CVE-2015-3332

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-53.89~precise1

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==========================================================================
Ubuntu Security Notice USN-2620-1
May 23, 2015

linux vulnerability
==========================================================================

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

– Ubuntu 14.04 LTS

Summary:

The system could be made to crash under certain conditions.

Software Description:
– linux: Linux kernel

Details:

A flaw was discovered in the Linux kernel’s IPv4 networking when using TCP
fast open to initiate a connection. An unprivileged local user could
exploit this flaw to cause a denial of service (system crash).

Update instructions:

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

Ubuntu 14.04 LTS:
linux-image-3.13.0-53-generic 3.13.0-53.89
linux-image-3.13.0-53-generic-lpae 3.13.0-53.89
linux-image-3.13.0-53-lowlatency 3.13.0-53.89
linux-image-3.13.0-53-powerpc-e500 3.13.0-53.89
linux-image-3.13.0-53-powerpc-e500mc 3.13.0-53.89
linux-image-3.13.0-53-powerpc-smp 3.13.0-53.89
linux-image-3.13.0-53-powerpc64-emb 3.13.0-53.89
linux-image-3.13.0-53-powerpc64-smp 3.13.0-53.89

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

References:
http://www.ubuntu.com/usn/usn-2620-1
CVE-2015-3332

Package Information:
https://launchpad.net/ubuntu/+source/linux/3.13.0-53.89

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