[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (USN-6868-1)

[Oracle Ksplice]

Synopsis: USN-6868-1 can now be patched using Ksplice
CVEs: CVE-2024-26642 CVE-2024-26643 CVE-2024-26925

Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-6868-1.

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-2024-26642, CVE-2024-26643: Privilege escalation in netfilter subsystem.

A logical error in the netfilter subsystem can cause a race between the
netfilter garbage collector and freeing of anonymous sets with timeouts
(wrongly allowed to create from userspace), leading to a use-after-free.
A local attacker can exploit this flaw to escalate privileges or
facilitate an attack.


* CVE-2024-26925: Privilege escalation in Network packet filtering framework.

A race condition when using Network packet filtering framework
(Netfilter) with garbage collector could lead to a use-after-free. 
A local attacker could use this flaw to escalate privileges.

SUPPORT

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