[El-errata] New Ksplice updates for UEKR4 4.1.12 on OL6 and OL7 (ELSA-2023-12323)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2023-12323 can now be patched using Ksplice
CVEs: CVE-2022-4095 CVE-2023-1513 CVE-2023-23559 CVE-2023-26545 CVE-2023-28772

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2023-12323.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2023-12323.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR4 4.1.12 on
OL6 and OL7 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-2023-26545: Stale pointer in MultiProtocol Label Switching subsystem.

Incorrect error handling in the MultiProtocol Label Switching subsystem
(MPLS) during the renaming of a device can lead to double free. This could
allow a local user to write to arbitrary memory locations or cause
denial-of-service.

Orabug: 35181964


* CVE-2023-28772: Buffer overflow in seq_buf helper.

A missing check in the seq_buf helper to write raw memory into a buffer
in ASCII hex could lead to a buffer overflow. A local attacker could use
this flaw to cause a denial-of-service.

Orabug: 35217595


* CVE-2023-23559: Buffer overflow in driver for RNDIS-based wireless USB devices.

A buffer overflow exists in the driver code for wireless USB devices based on
Remote Network Driver Interface Specification (RNDIS). This could allow a local
user to cause denial-of-service.

Orabug: 35037715


* CVE-2022-4095: Use-after-free in rtl8712 USB networking driver.

A flaw in the rtl8712 driver may lead to a use-after-free when
processing the command queue. A local attacker could use this flaw to
cause a denial-of-service or escalate privileges.

Orabug: 35212876


* CVE-2023-1513: Information leak in KVM ioctl.

Incomplete initialization of structure returned to user during KVM's
KVM_GET_DEBUGREGS ioctl can lead to information leak. This can allow a local
user to access to privileged data.

Orabug: 35250098

SUPPORT

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