[Ksplice][Virtuozzo 4.7 Updates] New updates available via Ksplice (2.6.32-042stab113.21)

[Oracle Ksplice]

Synopsis: 2.6.32-042stab113.21 can now be patched using Ksplice
CVEs: CVE-2015-8543 CVE-2016-0774 CVE-2016-3134

Systems running Virtuozzo 4.7 or the OpenVZ RHEL 6 kernel can now use
Ksplice to patch against the latest Parallels Virtuozzo Containers 4.7
kernel security update, 2.6.32-042stab113.21.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on Virtuozzo 4.7 or
OpenVZ on RHEL 6 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-2015-8543: Denial-of-service on out of range protocol for raw sockets.

It was discovered that a local user permitted to create raw sockets could
cause a denial-of-service by specifying an invalid protocol number for the
socket.


* CVE-2016-3134: Memory corruption when parsing netfilter source chains.

A logic error when parsing netfilter source chains can allow local users
to corrupt kernel memory.


* CVE-2016-0774: Information leak in the pipe system call on failed atomic read.

The fix for CVE-2015-1805 incorrectly kept buffer offset and length in sync
on a failed atomic read, leading to piper buffer state corruption.  A
local, unprivileged user could use this flaw to cause a denial-of-service
or leak kernel memory to userspace.

SUPPORT

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