[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (USN-6495-1)

[Oracle Ksplice]

Synopsis: USN-6495-1 can now be patched using Ksplice
CVEs: CVE-2023-31085 CVE-2023-45871

Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-6495-1.

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-2023-45871: Denial-of-service in Intel(R) 82575/82576 PCI-Express Gigabit Ethernet driver.

An error when allocating memory to handle received frames in Intel(R)
82575/82576 PCI-Express Gigabit Ethernet driver could lead to a buffer
overflow. A remote attacker could use this flaw to cause a denial-of-
service.


* CVE-2023-31085: Denial-of-service in UBI driver.

The UBI driver did not properly handle MTD devices with zero erasesize,
which could trigger a divide-by-zero exception while attaching UBI devices.
A local privileged attacker could use this flaw to cause a denial-of-service.

SUPPORT

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