[El-errata] New Ksplice updates for UEKR2 2.6.39 on OL5 and OL6 (ELSA-2020-5709)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2020-5709 can now be patched using Ksplice
CVEs: CVE-2019-19527 CVE-2019-19532

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2020-5709.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2020-5709.html

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-2019-19527: Denial-of-service in USB HID device open.

A race condition when opening a USB HID device could result in a
use-after-free and kernel crash.

Orabug: 31206362


* CVE-2019-19532: Denial-of-service when initializing HID devices.

A failure to properly check a device-controlled parameter in the USB HID
subsystem lead to reading or writing past memory bounds. An attacker can
exploit this bug with a specially crafted USB device to escalate
privileges or cause a denial-of-service.

Orabug: 31208624

SUPPORT

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