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USN-1677-1: Linux kernel vulnerability

20 December 2012

The system could be made to crash under certain conditions.

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Releases

Packages

Details

A flaw was discovered in the Linux kernel's handling of new hot-plugged
memory. An unprivileged local user could exploit this flaw to cause a
denial of service by crashing the system.

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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 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.

References

Related notices

  • USN-1679-1: linux-ti-omap4, linux-image-3.0.0-1219-omap4
  • USN-1678-1: linux-image-3.0.0-29-server, linux-image-3.0.0-29-generic-pae, linux-image-3.0.0-29-generic, linux-lts-backport-oneiric, linux-image-3.0.0-29-virtual
  • USN-1670-1: linux-image-3.2.0-1423-omap4, linux-ti-omap4
  • USN-1704-1: linux-image-3.5.0-22-generic, linux-lts-quantal
  • USN-1673-1: linux-ti-omap4, linux-image-3.5.0-216-omap4
  • USN-1671-1: linux-image-3.5.0-21-highbank, linux-image-3.5.0-21-generic, linux-image-3.5.0-21-powerpc64-smp, linux, linux-image-3.5.0-21-powerpc-smp, linux-image-3.5.0-21-omap
  • USN-1669-1: linux-image-3.2.0-35-virtual, linux-image-3.2.0-35-powerpc64-smp, linux-image-3.2.0-35-generic, linux-image-3.2.0-35-highbank, linux, linux-image-3.2.0-35-powerpc-smp, linux-image-3.2.0-35-generic-pae, linux-image-3.2.0-35-omap

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Further reading