[Ksplice][Ubuntu-12.04-Updates] New updates available via Ksplice (USN-2445-1)

[Oracle Ksplice]

Synopsis: USN-2445-1 can now be patched using Ksplice
CVEs: CVE-2014-8134 CVE-2014-9090

Systems running Ubuntu 12.04 Precise can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-2445-1.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on Ubuntu 12.04 Precise
install these updates.

On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf,
these updates will be installed automatically and you do not need to
take any action.

Alternatively, you can install these updates by running:

# /usr/sbin/uptrack-upgrade -y


DESCRIPTION

* CVE-2014-9090: Denial-of-service in double-fault handling on bad stack segment.

A flaw when handling double faults associated with the stack segment
register could lead to a kernel panic.  A local, unprivileged user could
use this flaw via the modify_ldt() system call to cause a
denial-of-service.


* CVE-2014-8134: Information leak in 32-bit KVM guests.

A bug in the espfix handling code could result in leaking high bits of
the kernel stack pointer when returning to a userspace with a 16 bit
stack.  A local unprivileged user could potentially use this flaw to
leak kernel stack addresses.

SUPPORT

Ksplice support is available at ksplice-support_ww at oracle.com.