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==========================================================================
Ubuntu Security Notice USN-1606-1
October 11, 2012

linux 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: Linux kernel

Details:

A flaw was found in how the Linux kernel's KVM (Kernel-based Virtual
Machine) subsystem handled MSI (Message Signaled Interrupts). A local
unprivileged user could exploit this flaw to cause a denial of service or
potentially elevate privileges. (CVE-2012-2137)

A flaw was found in how the Linux kernel passed the replacement session
keyring to a child process. An unprivileged local user could exploit this
flaw to cause a denial of service (panic). (CVE-2012-2745)

Update instructions:

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

Ubuntu 10.04 LTS:
  linux-image-2.6.32-44-386       2.6.32-44.98
  linux-image-2.6.32-44-generic   2.6.32-44.98
  linux-image-2.6.32-44-generic-pae  2.6.32-44.98
  linux-image-2.6.32-44-ia64      2.6.32-44.98
  linux-image-2.6.32-44-lpia      2.6.32-44.98
  linux-image-2.6.32-44-powerpc   2.6.32-44.98
  linux-image-2.6.32-44-powerpc-smp  2.6.32-44.98
  linux-image-2.6.32-44-powerpc64-smp  2.6.32-44.98
  linux-image-2.6.32-44-preempt   2.6.32-44.98
  linux-image-2.6.32-44-server    2.6.32-44.98
  linux-image-2.6.32-44-sparc64   2.6.32-44.98
  linux-image-2.6.32-44-sparc64-smp  2.6.32-44.98
  linux-image-2.6.32-44-versatile  2.6.32-44.98
  linux-image-2.6.32-44-virtual   2.6.32-44.98

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-1606-1
  CVE-2012-2137, CVE-2012-2745

Package Information:
  https://launchpad.net/ubuntu/+source/linux/2.6.32-44.98


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