[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (5.4.0-97.110)

[Oracle Ksplice]

Synopsis: 5.4.0-97.110 can now be patched using Ksplice
CVEs: CVE-2020-27820 CVE-2021-3640 CVE-2021-42739

Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu kernel update, 5.4.0-97.110.

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-2021-42739: Buffer overflow in FireDTV firewire DVB receiver driver.

The FireDTV firewire DVB receiver driver contains a buffer overflow when
processing a Program Map Table entry. A malicious device might exploit
this to overwrite memory and cause a denial-of-service.


* CVE-2021-3640: Privilege escalation in Bluetooth Classic due to use-after-free.

A race condition flaw in ioctls of Bluetooth Classic could lead to
use-after-free. A privileged local user could use this flaw to cause
a denial-of-service or escalate their privileges on the system.


* CVE-2020-27820: Denial-of-service in Nouveau (nVidia) cards support.

A use-after-free in postclose() handler of Nouveau (nVidia) cards
support could happen when removing the device or unbinding the driver.
A privileged local user could use this flaw for denial-of-service.

SUPPORT

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