[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (USN-6548-1)

[Oracle Ksplice]

Synopsis: USN-6548-1 can now be patched using Ksplice
CVEs: CVE-2023-1989 CVE-2023-3006 CVE-2023-37453 CVE-2023-39189 CVE-2023-39192 CVE-2023-39193 CVE-2023-39194 CVE-2023-42754 CVE-2023-5178 CVE-2023-5717 CVE-2023-6176

Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-6548-1.

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-2023-39194: Information disclosure when using xfrm subsystem.

A missing check when using xfrm subsystem could lead to an out-of-bounds
access. A local user could use this flaw to leak sensitive information.


* CVE-2023-39192: Out-of-bounds access in Netfilter xt_u32 module.

Incomplete input validation in Netfilter xt_u32 extension module
allows a local privileged user to cause an out-of-bounds read.  This can
lead to a denial-of-service or information disclosure.


* CVE-2023-39193: Out-of-bounds access in Netfilter xt_sctp module.

Incomplete input validation in Netfilter xt_sctp extension module allows a
local user with CAP_NET_ADMIN privileges to cause an out-of-bounds read.  This
can lead to a denial-of-service or information disclosure.


* CVE-2023-1989: Denial-of-service when unloading the Bluetooth SDIO driver.

A missing clean-up routine to cancel a timer when removing a Bluetooth SDIO
could lead to a use-after-free.  A local, privileged user could use this
flaw to cause a denial-of-service.


* CVE-2023-39189: Out-of-bounds access in Netfilter OSF over NFNETLINK interface.

Insufficient input validation in the Netfilter OSF over NFNETLINK interface
can lead to an out-of-bounds read.  This can lead to information disclosure.


* CVE-2023-37453: Denial-of-service in USB core.

A race condition in the USB subsystem could lead to an out-of-bounds read
while handling device descriptors in some situations. A local attacker
could potentially use this flaw to cause a denial-of-service.


* CVE-2023-5178: Privilege escalation in NVMe over Fabrics TCP.

A logic error when using NVMe over Fabrics TCP target could lead to a
use-after-free. A remote attacker could use this flaw to escalate
privileges.


* CVE-2023-42754: Denial-of-service on IPV4 link failure.

A missing check on IPV4 link failure could lead to a NULL pointer
dereference. A local attacker could use this flaw to cause a
denial-of-service.


* CVE-2023-6176: Privilege escalation in Transport Layer Security subsystem.

Incorrect error handling in the Transport Layer Security subsystem while
performing cryptographic operations in some situations could lead to a
NULL pointer dereference. A local attacker could use this flaw to cause
a denial-of-service or potentially escalate privileges.


* CVE-2023-5717: Privilege escalation in the Linux kernel's Performance Events.

A logic error in the Linux kernel's Performance Events could lead to a
heap out-of-bounds write. A local attacker could use this flaw to cause
a denial-of-service or escalate privileges.


* Note: Oracle has determined that CVE-2023-3006 is not applicable.

Oracle has determined that CVE-2023-3006 is not applicable to x86.
Applying the patch has no resulting changes in the generated object
files.

SUPPORT

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