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USN-1742-1: Linux kernel (OMAP4) vulnerability

22 February 2013

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

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Releases

Packages

Details

Suleiman Souhlal, Salman Qazi, Aaron Durbin and Michael Davidson discovered
a race condition in the Linux kernel's ptrace syscall. An unprivileged
local attacker could exploit this flaw to run programs as an administrator.

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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-1741-1: linux-image-3.2.0-38-powerpc-smp, linux-image-3.2.0-38-virtual, linux-image-3.2.0-38-generic, linux-image-3.2.0-38-powerpc64-smp, linux-image-3.2.0-38-generic-pae, linux-image-3.2.0-38-highbank, linux-image-3.2.0-38-omap, linux
  • USN-1739-1: linux-image-3.0.0-31-server, linux-image-3.0.0-31-omap, linux-image-3.0.0-31-virtual, linux-image-3.0.0-31-powerpc, linux-image-3.0.0-31-powerpc-smp, linux-image-3.0.0-31-generic-pae, linux-image-3.0.0-31-powerpc64-smp, linux-image-3.0.0-31-generic, linux
  • USN-1743-1: linux-lts-quantal, linux-image-3.5.0-25-generic
  • USN-1740-1: linux-ti-omap4, linux-image-3.0.0-1221-omap4
  • USN-1745-1: linux-ti-omap4, linux-image-3.5.0-220-omap4
  • USN-1738-1: linux-image-3.0.0-31-server, linux-lts-backport-oneiric, linux-image-3.0.0-31-virtual, linux-image-3.0.0-31-generic-pae, linux-image-3.0.0-31-generic
  • USN-1744-1: linux-image-3.5.0-25-omap, linux-image-3.5.0-25-generic, linux-image-3.5.0-25-powerpc64-smp, linux-image-3.5.0-25-highbank, linux, linux-image-3.5.0-25-powerpc-smp
  • USN-1737-1: linux-image-2.6.32-350-ec2, linux-ec2
  • USN-1736-1: linux-image-2.6.32-45-ia64, linux-image-2.6.32-45-lpia, linux-image-2.6.32-45-386, linux-image-2.6.32-45-preempt, linux-image-2.6.32-45-sparc64-smp, linux-image-2.6.32-45-versatile, linux-image-2.6.32-45-sparc64, linux-image-2.6.32-45-generic-pae, linux-image-2.6.32-45-powerpc64-smp, linux-image-2.6.32-45-virtual, linux-image-2.6.32-45-powerpc, linux-image-2.6.32-45-server, linux-image-2.6.32-45-generic, linux, linux-image-2.6.32-45-powerpc-smp

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