ubuntu-security-announce Digest, Vol 99, Issue 2

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Today's Topics:

1. [USN-1653-1] Linux kernel (EC2) vulnerability (John Johansen)


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

Message: 1
Date: Tue, 04 Dec 2012 14:03:52 -0800
From: John Johansen <john.johansen@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1653-1] Linux kernel (EC2) vulnerability
Message-ID: <50BE7348.3060508@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"

==========================================================================
Ubuntu Security Notice USN-1653-1
December 04, 2012

linux-ec2 vulnerability
==========================================================================

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

- Ubuntu 10.04 LTS

Summary:

The system could be made to run programs as an administrator.

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

Details:

Rodrigo Freire discovered a flaw in the Linux kernel's TCP illinois
congestion control algorithm. A local attacker could use this to cause a
denial of service.

Update instructions:

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

Ubuntu 10.04 LTS:
linux-image-2.6.32-350-ec2 2.6.32-350.57

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-1653-1
CVE-2012-4565

Package Information:
https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-350.57

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End of ubuntu-security-announce Digest, Vol 99, Issue 2
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