[El-errata] New Ksplice updates for UEKR4 4.1.12 on OL6 and OL7 (ELSA-2018-4307)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2018-4307 can now be patched using Ksplice
CVEs: CVE-2018-1000004 CVE-2018-18386 CVE-2018-8043

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2018-4307.

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-2018-8043: NULL pointer dereference when registering Broadcom UniMAC MDIO bus controller.

A missing check when registering Broadcom UniMAC MDIO bus controller
could lead to a NULL pointer dereference. A local attacker could use
this flaw to cause a denial-of-service.

Orabug: 29012346


* Improved fix for CVE-2018-1000004: Denial-of-service in ALSA sequencer.

A race condition in the ALSA sequencer subsystem leads to use-after-free
and subsequent memory corruption. This could allow an attacker to cause
a denial-of-service and possibly escalate privilege.

Orabug: 29005188


* CVE-2018-18386: Denial-of-service when using EXTPROC mode of a terminal.

A logic error when setting a terminal in ICANON mode while in EXTPROC
mode could hangs all terminal of the system. A local attacker could use
this flaw to cause a denial-of-service.

Orabug: 28855335

SUPPORT

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