[Ksplice][Ubuntu-Oracle-Updates] New Ksplice updates for Ubuntu OCI kernel (USN-5621-1)

[Oracle Ksplice]

Synopsis: USN-5621-1 can now be patched using Ksplice
CVEs: CVE-2021-33655 CVE-2022-36946

Systems running Ubuntu OCI kernel can now use Ksplice to patch against
the latest Ubuntu Security Notice, USN-5621-1.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running Ubuntu OCI
kernel 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-2021-33655: Privilege escalation when setting font or screen size.

A missing check when setting screen size or font could lead to an
out-of-bounds memory access. A local attacker could use this flaw to
cause a denial-of-service or escalate privileges.


* CVE-2022-36946: Denial-of-service in netfilter packet handling.

A missing check in netfilter packet handling could lead to an assert.
A remote attacker could use this flaw to cause a denial-of-service.

SUPPORT

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