[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (5.4.0-91.102)

[Oracle Ksplice]

Synopsis: 5.4.0-91.102 can now be patched using Ksplice
CVEs: CVE-2021-37159 CVE-2021-3744 CVE-2021-3764

Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu kernel update, 5.4.0-91.102.

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-2021-3744, CVE-2021-3764: Denial-of-service in AMD Cryptographic Coprocessor driver.

Error handling flaws in AMD Cryptographic Coprocessor driver could cause
memory leaks due to a failure to free memory allocated to process some
software operations. A local user could use this flaws to cause a denial
of service.


* CVE-2021-37159: Code execution in Option USB High Speed Mobile device driver.

Improper error handling during device initialization in Option USB High
Speed Mobile device driver could lead to a use-after-free and a double
free. A local user could use this flaw to cause a denial-of-service or
possibly execute arbitrary code.

SUPPORT

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