[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (USN-5358-1)

[Roman Geller]

Synopsis: USN-5358-1 can now be patched using Ksplice
CVEs: CVE-2022-0886 CVE-2022-1055 CVE-2022-27666

Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-5358-1.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running Ubuntu 20.04
Focal 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-2022-1055: Use-after-free in Packet classifier API.

A missing cleanup of variables when creating an new filter in Packet
classifier API could lead to a use-after-free. A local user could use
this flaw to cause a denial-of-service or code execution.


* CVE-2022-27666, CVE-2022-0886: Privilege escalation in IPsec ESP transformation.

A logic flaw in IPsec ESP transformation implementation could lead to
a heap buffer overflow. A local user could use this flaw to overwrite
kernel heap objects and cause privilege escalation.

SUPPORT

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