[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (USN-5514-1)

[Oracle Ksplice]

Synopsis: USN-5514-1 can now be patched using Ksplice
CVEs: CVE-2022-1195 CVE-2022-1789 CVE-2022-33981

Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-5514-1.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running Ubuntu 20.04
Focal 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-2022-1789: Denial-of-service in Kernel-based Virtual Machine.

A flaw in handling guest TLB mapping invalidation requests of
Kernel-based Virtual Machine could result in a NULL pointer dereference.
A local use could use this flaw for a denial-of-service.


* CVE-2022-33981: Denial-of-service in Floppy Disk support.

A logic flaw in ioctls of Floppy Disk support could result in
use-after-free. A local use could use this flaw for a denial-of-service.


* CVE-2022-1195: Denial-of-service in Serial port 6PACK driver.

Improper detach events handling in Serial port 6PACK driver when
detaching mkiss or sixpack device could result in a use-after-free.
A local user could use this flaw for a denial-of-service.

SUPPORT

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