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==========================================================================
Ubuntu Security Notice USN-1899-1
July 04, 2013

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:

Dmitry Monakhov reported a race condition flaw the Linux ext4 filesystem
that can expose stale data. An unprivileged user could exploit this flaw to
cause an information leak. (CVE-2012-4508)

An information leak was discovered in the Linux kernel's tkill and tgkill
system calls when used from compat processes. A local user could exploit
this flaw to examine potentially sensitive kernel memory. (CVE-2013-2141)

A format string vulnerability was discovered in Broadcom B43 wireless
driver for the Linux kernel. A local user could exploit this flaw to gain
administrative privileges. (CVE-2013-2852)

Update instructions:

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

Ubuntu 10.04 LTS:
  linux-image-2.6.32-49-386       2.6.32-49.111
  linux-image-2.6.32-49-generic   2.6.32-49.111
  linux-image-2.6.32-49-generic-pae  2.6.32-49.111
  linux-image-2.6.32-49-ia64      2.6.32-49.111
  linux-image-2.6.32-49-lpia      2.6.32-49.111
  linux-image-2.6.32-49-powerpc   2.6.32-49.111
  linux-image-2.6.32-49-powerpc-smp  2.6.32-49.111
  linux-image-2.6.32-49-powerpc64-smp  2.6.32-49.111
  linux-image-2.6.32-49-preempt   2.6.32-49.111
  linux-image-2.6.32-49-server    2.6.32-49.111
  linux-image-2.6.32-49-sparc64   2.6.32-49.111
  linux-image-2.6.32-49-sparc64-smp  2.6.32-49.111
  linux-image-2.6.32-49-versatile  2.6.32-49.111
  linux-image-2.6.32-49-virtual   2.6.32-49.111

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-1899-1
  CVE-2012-4508, CVE-2013-2141, CVE-2013-2852

Package Information:
  https://launchpad.net/ubuntu/+source/linux/2.6.32-49.111



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