[El-errata] New Ksplice updates for UEKR5 4.14.35 on OL7 (ELSA-2021-9485)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2021-9485 can now be patched using Ksplice
CVEs: CVE-2021-3491

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2021-9485.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2021-9485.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR5 4.14.35
on OL7 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-2021-3491: Denial-of-service due to limit enforcement issues in IO uring.

A local user could leverage inadequate enforcement of buffer size limits in
some IO uring code paths to cause a denial-of-service or potentially execute
arbitrary code.

SUPPORT

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