==========================================================================
Ubuntu Security Notice USN-1688-1
January 15, 2013

linux-lts-backport-oneiric 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-lts-backport-oneiric: Linux kernel backport from Oneiric

Details:

Jon Howell reported a flaw in the Linux kernel's KVM (Kernel-based virtual
machine) subsystem's handling of the XSAVE feature. On hosts, using qemu
userspace, without the XSAVE feature an unprivileged local attacker could
exploit this flaw to crash the system. (CVE-2012-4461)

A flaw was discovered in the Linux kernel's handling of script execution
when module loading is enabled. A local attacker could exploit this flaw to
cause a leak of kernel stack contents. (CVE-2012-4530)

Update instructions:

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

Ubuntu 10.04 LTS:
  linux-image-3.0.0-30-generic    3.0.0-30.47~lucid1
  linux-image-3.0.0-30-generic-pae  3.0.0-30.47~lucid1
  linux-image-3.0.0-30-server     3.0.0-30.47~lucid1
  linux-image-3.0.0-30-virtual    3.0.0-30.47~lucid1

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-1688-1
  CVE-2012-4461, CVE-2012-4530

Package Information:
  https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric/3.0.0-30.47~lucid1

IT security jobs: What's in demand and how to meet it

Posted on 15 May 2013.  |  Let's say you want a career in information security, where do you start? What credentials do you need? What are employers looking for? Read on to find some answers.

Is Microsoft is reading your Skype communications?

Posted on 15 May 2013.  |  The question of whether Skype allows U.S. intelligence and law enforcement agencies to access the communications exchanged by its users has still not been adequately answered by Microsoft.

Internet Explorer best at blocking malware

Posted on 14 May 2013.  |  While Chrome’s malware download protection improved significantly, Internet Explorer 10 continues to outperform the other browsers with a block rate of 99.96%.

Researcher refuses to help Saudi telco to spy on people

Posted on 14 May 2013.  |  You would think that a Saudi Arabian telecom firm interested in monitoring its users' mobile communications would not be asking a well-known pro-privacy researcher for help, but you would be wrong.

Malicious browser extensions are hijacking Facebook accounts

Posted on 13 May 2013.  |  Facebook users - especially those in Brazil - are being targeted with malicious browser extensions trying to hijack Facebook profiles, warns Microsoft.