[Ksplice][EL8-Updates] New Ksplice updates for OL 8 and RHEL 8 (ELSA-2021-3447)

[Oracle Ksplice]

Synopsis: ELSA-2021-3447 can now be patched using Ksplice
CVEs: CVE-2021-37576 CVE-2021-38201

Systems running RHCK on Oracle Linux 8 and Red Hat Enterprise Linux 8
can now use Ksplice to patch against the latest Red Hat kernel update,
ELSA-2021-3447.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2021-3447.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running OL 8 and RHEL 8
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-2021-38201: Remote denial-of-service via NFSv4 READ_PLUS operation.

A flaw in the SUNRPC XDR parsing code could allow for out-of-bounds
accesses when handling NFSv4 READ_PLUS operations. A malicious client
with the ability to mount NFS shares might exploit this to cause a
denial-of-service.


* Note: Oracle has determined that CVE-2021-37576 is not applicable.

The kernel is not affected by CVE-2021-37576 since the code under
consideration is not compiled.

SUPPORT

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