[Ksplice][Ubuntu-20.10-Updates] New Ksplice updates for Ubuntu 20.10 Groovy (USN-4879-1)

[Oracle Ksplice]

Synopsis: USN-4879-1 can now be patched using Ksplice
CVEs: CVE-2020-36158 CVE-2021-20194

Systems running Ubuntu 20.10 Groovy can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-4879-1.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running Ubuntu 20.10
Groovy 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-2020-36158: Out-of-bounds memory write in wireless mwifiex driver.

A logic error in mwifiex wireless driver may overwrite allocated buffer
space.  A local user could exploit this vulnerability to cause a
denial-of-service or potentially escalate privileges.


* CVE-2021-20194: Privilege escalation in the BPF subsystem.

Missing error checks in the BPF subsystem could cause a buffer overflow.
A local user could use this flaw to escalate their privileges or cause
a denial-of-service.

SUPPORT

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