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USN-1916-1: Linux kernel (Raring HWE) vulnerability

29 July 2013

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

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Releases

Packages

Details

An information leak was discovered in the Linux kernel when inotify is used
to monitor the /dev/ptmx device. A local user could exploit this flaw to
discover keystroke timing and potentially discover sensitive information
like password length.

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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.

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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-1878-1: linux-image-3.2.0-48-powerpc64-smp, linux-image-3.2.0-48-generic-pae, linux-image-3.2.0-48-powerpc-smp, linux-image-3.2.0-48-generic, linux-image-3.2.0-48-virtual, linux-image-3.2.0-48-highbank, linux-image-3.2.0-48-omap, linux
  • USN-2129-1: linux-image-2.6.32-362-ec2, linux-ec2
  • USN-1883-1: linux-image-3.5.0-226-omap4, linux-ti-omap4
  • USN-2128-1: linux-image-2.6.32-57-sparc64-smp, linux-image-2.6.32-57-generic-pae, linux-image-2.6.32-57-generic, linux-image-2.6.32-57-versatile, linux-image-2.6.32-57-powerpc-smp, linux-image-2.6.32-57-powerpc64-smp, linux-image-2.6.32-57-sparc64, linux-image-2.6.32-57-powerpc, linux-image-2.6.32-57-virtual, linux-image-2.6.32-57-preempt, linux-image-2.6.32-57-386, linux-image-2.6.32-57-lpia, linux-image-2.6.32-57-ia64, linux-image-2.6.32-57-server, linux
  • USN-1880-1: linux-lts-quantal, linux-image-3.5.0-34-generic
  • USN-1879-1: linux-ti-omap4, linux-image-3.2.0-1433-omap4
  • USN-1881-1: linux-image-3.5.0-34-generic, linux-image-3.5.0-34-omap, linux-image-3.5.0-34-highbank, linux-image-3.5.0-34-powerpc-smp, linux, linux-image-3.5.0-34-powerpc64-smp
  • USN-1882-1: linux-image-3.5.0-226-omap4, linux-ti-omap4

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Further reading