El-errata: New Ksplice updates for RHCK 8 (ELSA-2021-2714)

Synopsis: ELSA-2021-2714 can now be patched using Ksplice
CVEs: CVE-2021-32399 CVE-2021-33909

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2021-2714.
More information about this errata can be found at
  https://linux.oracle.com/errata/ELSA-2021-2714.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running RHCK 8 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-2021-32399: Code execution in the Bluetooth subsystem when removing an HCI controller.

A race condition flaw in the Bluetooth subsystem could lead to
a use-after-free of slab objects during HCI controller removal.
An local user could use this flaw to execute arbitrary code.

* CVE-2021-33909: Code execution in the virtual file system.

An unsigned to signed integer conversion flaw in the virtual file system
implementation could lead to a system crash. A local attacker could use
this flaw to execute arbitrary code or cause a denial-of-service.

SUPPORT

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