[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (USN-6741-1)

[Oracle Ksplice]

Synopsis: USN-6741-1 can now be patched using Ksplice
CVEs: CVE-2023-24023 CVE-2023-52600 CVE-2023-52603 CVE-2024-26581 CVE-2024-26589

Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-6741-1.

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-2024-26589: Out-of-bounds access in the BPF subsystem.

A missing check in the BPF subsystem when verifying flow dissector
routines can allow out-of-bounds access. A BPF program can thus be used
to cause denial-of-service or privilege escalation.


* CVE-2024-26581: Out-of-bounds write in netfilter subsystem.

Garbage collection while inserting an element in the internal kernel
data structure in the netfilter subsystem can lead to an out-of-bounds
write. A local attacker can exploit this flaw to cause privilege
escalation or denial-of-service.


* CVE-2023-52603: Privilege escalation when creating directory in JFS filesystem.

A logic error when creating directory in JFS filesystem could lead to an
out-of-bounds access. A local attacker could use this flaw to cause a
denial-of-service or escalate privileges.


* CVE-2023-52600: Denial-of-service when mounting JFS filesystem.

A logic error during error handling when mounting JFS filesystem could
lead to a use-after-free. A local attacker could use this flaw to cause
a denial-of-service.


* CVE-2023-24023: Authentication bypass when pairing Bluetooth devices.

A missing check when receiving encryption key over Bluetooth could lead
to an authentication bypass. An attacker close to the machine could use
this flaw to impersonate a paired device.

SUPPORT

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