USN-1678-1: Linux kernel (Oneiric backport) vulnerability

Ubuntu Security Notice USN-1678-1

20th December, 2012

linux-lts-backport-oneiric vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 10.04 LTS

Summary

The system could be made to crash under certain conditions.

Software description

  • linux-lts-backport-oneiric - Linux kernel backport from Oneiric

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.

Update instructions

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

Ubuntu 10.04 LTS:
linux-image-3.0.0-29-generic-pae 3.0.0-29.46~lucid1
linux-image-3.0.0-29-virtual 3.0.0-29.46~lucid1
linux-image-3.0.0-29-generic 3.0.0-29.46~lucid1
linux-image-3.0.0-29-server 3.0.0-29.46~lucid1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

CVE-2012-5517