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USN-1691-1: Linux kernel (OMAP4) vulnerability

15 January 2013

The system could be made to leak data on the kernel stack.




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.

Update instructions

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

Ubuntu 11.10

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.


Related notices

  • USN-1700-1: linux-ti-omap4, linux-image-3.5.0-217-omap4
  • USN-1689-1: linux-image-3.0.0-30-powerpc, linux-image-3.0.0-30-generic, linux-image-3.0.0-30-omap, linux-image-3.0.0-30-powerpc64-smp, linux-image-3.0.0-30-generic-pae, linux-image-3.0.0-30-virtual, linux-image-3.0.0-30-server, linux, linux-image-3.0.0-30-powerpc-smp
  • USN-1683-1: linux-image-2.6.32-45-lpia, linux-image-2.6.32-45-generic, linux-image-2.6.32-45-server, linux-image-2.6.32-45-preempt, linux-image-2.6.32-45-ia64, linux-image-2.6.32-45-versatile, linux-image-2.6.32-45-powerpc64-smp, linux-image-2.6.32-45-powerpc-smp, linux, linux-image-2.6.32-45-sparc64, linux-image-2.6.32-45-386, linux-image-2.6.32-45-generic-pae, linux-image-2.6.32-45-virtual, linux-image-2.6.32-45-sparc64-smp, linux-image-2.6.32-45-powerpc
  • USN-1698-1: linux-ti-omap4, linux-image-3.2.0-1424-omap4
  • USN-1696-1: linux-image-3.2.0-36-powerpc-smp, linux-image-3.2.0-36-generic-pae, linux-image-3.2.0-36-generic, linux, linux-image-3.2.0-36-powerpc64-smp, linux-image-3.2.0-36-highbank, linux-image-3.2.0-36-virtual, linux-image-3.2.0-36-omap
  • USN-1704-1: linux-lts-quantal, linux-image-3.5.0-22-generic
  • USN-1688-1: linux-image-3.0.0-30-generic, linux-image-3.0.0-30-generic-pae, linux-image-3.0.0-30-virtual, linux-image-3.0.0-30-server, linux-lts-backport-oneiric
  • USN-1684-1: linux-ec2, linux-image-2.6.32-350-ec2
  • USN-1699-1: linux-image-3.5.0-22-generic, linux-image-3.5.0-22-omap, linux-image-3.5.0-22-powerpc-smp, linux-image-3.5.0-22-highbank, linux, linux-image-3.5.0-22-powerpc64-smp