[El-errata] New updates available via Ksplice (ELSA-2014-3081)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2014-3081 can now be patched using Ksplice
CVEs: CVE-2014-3535 CVE-2014-3601 CVE-2014-4653 CVE-2014-4654 CVE-2014-4655

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Security Advisory, ELSA-2014-3081.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack on EL 7 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-2014-3535: NULL pointer dereference in VxLAN packet logging.

A NULL pointer dereference flaw was found in the way the Linux kernel's
networking implementation handled logging while processing certain invalid
packets coming in via a VxLAN interface. A remote attacker could use this
flaw to crash the system by sending a specially crafted packet to such an
interface.


* CVE-2014-3601: Denial-of-service in KVM page mapping.

The kvm map pages function miscalculates the number of pages in the case
of a mapping failure, which allows guest OS users to (1) cause a denial of
service (host OS memory corruption) or possibly have unspecified other
impact by triggering a large gfn value or (2) cause a denial of service
(host OS memory consumption) by triggering a small gfn value that leads to
permanently pinned pages.


* CVE-2014-4654, CVE-2014-4655: Missing validity checks in ALSA user controls.

Missing validity checks when replacing user controls could lead to an attempt
to free something that is not a user control or a control that is not owned
by the process. Userspace was also allowed to to bypass user control count
by overflowing it.


* CVE-2014-4653: Use after free in ALSA card controls.

Missing synchronization in ALSA card controls could lead to a control
being freed while being in use.

SUPPORT

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