[Ksplice][EL7-Updates] New Ksplice updates for OL 7, RHEL 7, CentOS 7, and Scientific Linux 7 (ELSA-2022-5232)

[Oracle Ksplice]

Synopsis: ELSA-2022-5232 can now be patched using Ksplice
CVEs: CVE-2022-1729 CVE-2022-1966

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-2022-5232.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2022-5232.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-2022-1966: Code execution in Netfilter due to use-after-free.

A flaw in nftables API of the Netfilter subsystem when removing stateful
expressions could result in a use-after-free. A local user could use
this flaw to cause a denial-of-service or execute arbitrary code.


* CVE-2022-1729: Privilege escalation in Performance Events due to improper locking.

Improper locking in the Performance Events implementation when opening
and associating a performance event to a task/CPU could result in a race
condition. A local, unprivileged user could use this flaw for privilege
escalation.

SUPPORT

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