[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (USN-4591-1)

[Oracle Ksplice]

Synopsis: USN-4591-1 can now be patched using Ksplice
CVEs: CVE-2020-12351 CVE-2020-12352 CVE-2020-8694

Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-4591-1.

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-2020-12351: Denial-of-service in L2CAP bluetooth driver.

Logic errors in L2CAP bluetooth driver could let a remote attacker cause
a denial-of-service or potentially execute arbitrary code on the system.


* CVE-2020-12352: Information leak when handling AMP packets in Bluetooth stack.

A missing zeroing of stack memory when handling AMP packets in Bluetooth
stack could lead to an information leak. A remote attacker could use this
flaw to leak information about running kernel and facilitate an attack.


* CVE-2020-8694: Platypus Attack Mitigation.

A side-channel attack utilizing the Intel RAPL subsystem driver may
cause an information leak.  This may allow an unprivileged user to
view confidential data.

SUPPORT

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