[El-errata] New Ksplice updates for UEKR2 2.6.39 on OL5 and OL6 (ELSA-2016-3646)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2016-3646 can now be patched using Ksplice CVEs:
CVE-2015-8956 CVE-2016-1583 CVE-2016-3070 CVE-2016-4569 CVE-2016-4578
CVE-2016-6136 CVE-2016-6480

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2016-3646.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR2 2.6.39 on
OL5 and OL6 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-2015-8956: NULL pointer dereference in the Bluetooth stack.

A missing NULL pointer check when binding to a bluetooth socket could cause
a NULL pointer dereference.  A local user with privileges to bind a
bluetooth socket could use this flaw to cause a denial-of-service.


* 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-2016-6480: Denial-of-service in Adaptec AACRAID driver.

A race condition in fetching parameters from userspace could result in
accessing beyond the bounds of a buffer.  A local user with privileges
to access the device could use this flaw to crash the system.


* CVE-2016-6136: Audit log message spoofing.

A race condition when copying parameters from user-space could allow a
malicious user to spoof log messages in the audit subsystem, to
misrepresent commands or potentially evade logging.


* CVE-2016-1583: Privilege escalation in eCryptfs.

eCryptfs was incorrectly trying to use the mmap() file operation on lower
filesystem that may not support it.  A local, unprivileged user could use
this flaw to cause a denial-of-service through recursive faults or
potentially escalate privileges.


* CVE-2016-3070: Denial of service when migrating dirty pages.

A NULL pointer dereference could happen when migrating dirty pages from an
AIO ring buffer to another node.  A local, unprivileged user could use this
flaw to cause a denial-of-service.

SUPPORT

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