[El-errata] New Ksplice updates for UEKR4 4.1.12 on OL6 and OL7 (ELSA-2021-9369)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2021-9369 can now be patched using Ksplice
CVEs: CVE-2021-33909

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2021-9369.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2021-9369.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR4 4.1.12 on
OL6 and 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-2021-33909: Code execution in the virtual file system.

An unsigned to signed integer conversion flaw in the virtual file system
implementation could lead to a system crash. A local attacker could use
this flaw to execute arbitrary code or cause a denial-of-service.

SUPPORT

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