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USN-1993-1: Linux kernel (OMAP4) vulnerability

22 October 2013

The system could be made to expose sensitive information to a local user.

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Releases

Packages

Details

An information leak was discovered in the Linux kernel when reading
broadcast messages from the notify_policy interface of the IPSec
key_socket. A local user could exploit this flaw to examine potentially
sensitive information in kernel memory.

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 12.04

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

Related notices

  • USN-1912-1: linux-image-2.6.32-50-powerpc, linux-image-2.6.32-50-powerpc-smp, linux, linux-image-2.6.32-50-sparc64-smp, linux-image-2.6.32-50-386, linux-image-2.6.32-50-powerpc64-smp, linux-image-2.6.32-50-lpia, linux-image-2.6.32-50-preempt, linux-image-2.6.32-50-sparc64, linux-image-2.6.32-50-generic-pae, linux-image-2.6.32-50-virtual, linux-image-2.6.32-50-server, linux-image-2.6.32-50-versatile, linux-image-2.6.32-50-generic, linux-image-2.6.32-50-ia64
  • USN-1992-1: linux, linux-image-3.2.0-55-generic-pae, linux-image-3.2.0-55-virtual, linux-image-3.2.0-55-powerpc-smp, linux-image-3.2.0-55-generic, linux-image-3.2.0-55-powerpc64-smp, linux-image-3.2.0-55-omap, linux-image-3.2.0-55-highbank
  • USN-1973-1: linux-ti-omap4, linux-image-3.5.0-233-omap4
  • USN-1913-1: linux-ec2, linux-image-2.6.32-355-ec2
  • USN-1970-1: linux-image-3.5.0-41-generic, linux-lts-quantal
  • USN-1998-1: linux, linux-image-3.8.0-32-generic
  • USN-1995-1: linux-image-3.8.0-32-generic, linux-lts-raring
  • USN-1972-1: linux, linux-image-3.5.0-41-omap, linux-image-3.5.0-41-generic, linux-image-3.5.0-41-highbank, linux-image-3.5.0-41-powerpc64-smp, linux-image-3.5.0-41-powerpc-smp

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Further reading