[Ksplice][EL7-Updates] New Ksplice updates for OL 7, RHEL 7, CentOS 7, and Scientific Linux 7 (ELSA-2021-3438)

[Oracle Ksplice]

Synopsis: ELSA-2021-3438 can now be patched using Ksplice
CVEs: CVE-2021-3715

Systems running RHCK on Oracle Linux 7, Red Hat Enterprise Linux 7,
CentOS 7, and Scientific Linux 7 can now use Ksplice to patch against
the latest Red Hat kernel update, ELSA-2021-3438.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2021-3438.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running OL 7, RHEL 7,
CentOS 7, and Scientific Linux 7 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-2021-3715: Use-after-free when changing route in route4 classifier driver.

A logic error when changing route in route4 classifier driver could lead
to a use-after-free. A local attacker could use this flaw to cause a
denial-of-service.

SUPPORT

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