[Ksplice][Ubuntu-12.04-Updates] New updates available via Ksplice (USN-3021-1)

[Oracle Ksplice]

Synopsis: USN-3021-1 can now be patched using Ksplice
CVEs: CVE-2016-3951 CVE-2016-4482 CVE-2016-4565 CVE-2016-4569 CVE-2016-4578 CVE-2016-4580 CVE-2016-4913

Systems running Ubuntu 12.04 Precise can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-3021-1.

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-2016-4578, CVE-2016-4569: Information leak in sound timers.

Missing initialization of stack data structures could result in leaking
the contents of kernel stack memory to user-space.  A local user with
access to the sound device could use this flaw to infer the layout of
kernel memory.


* CVE-2016-4580: Kernel stack information leak in X25 facility negotiation.

Missing initialization of a stack data structure could result in leaking
up to 8 bytes of kernel stack information to a local, unprivileged user.


* CVE-2016-4913: Information leak in ISO9660 filename parsing.

Incorrect handling of NUL termination bytes could result in reading
excessive data from a kernel buffer into user-space.  A local user with
permissions to mount a maliciously crafted filesystem could use this
flaw to leak the contents of sensitive memory.


* Improved fix for CVE-2016-4565: Privilege escalation in Infiniband ioctl.

The initial fix for CVE-2016-4565 did not handle QLogic Hyper-Transport
adaptors which could allow local users to escalate privileges on
machines with that adaptor enabled.


* CVE-2016-3951: Use-after-free in USB networking device probe failure.

Incorrect error handling when registering a USB networking device could
result in a use-after-free condition and kernel crash.


* CVE-2016-4482: Information leak in USB devfs ioctl.

The USB devfs driver can leak the contents on the kernel stack to
userspace when performing a USBDEVFS_CONNECTINFO operation.

SUPPORT

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