[El-errata] New Ksplice updates for UEKR4 4.1.12 on OL6 and OL7 (ELSA-2016-3655)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2016-3655 can now be patched using Ksplice
CVEs: CVE-2016-7117 CVE-2016-8655

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2016-3655.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR4 4.1.12 on
OL6 and OL7 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-2016-8655: Privilege escalation in af_packet implementation.

A race condition in af_packet processing could allow a local
unprivileged user to cause a kernel crash or execute arbitrary code
with elevated privileges.


* CVE-2016-7117: Denial-of-service in recvmmsg() error handling.

Incorrect reference counting could result in a use-after-free in the
recvmmsg() system call.  A local, unprivileged user could use this flaw
to trigger a denial-of-service.

SUPPORT

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