[El-errata] New Ksplice updates for UEKR6 5.4.17 on OL7 and OL8 (ELSA-2023-12008)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2023-12008 can now be patched using Ksplice
CVEs: CVE-2021-26932 CVE-2021-3759 CVE-2022-3524 CVE-2022-3542 
CVE-2022-3564 CVE-2022-3594 CVE-2022-3628 CVE-2022-3640 CVE-2022-42719 
CVE-2022-42895 CVE-2022-4378

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2023-12008.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2023-12008.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR6 5.4.17 on
OL7 and OL8 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-2021-3759: Denial-of-service in System V Inter Process Communication.

A memory overflow could happen in System V Inter Process Communication
due to improper account for the memory usage of certain IPC objects
and result in memory exhaustion. A local user could use this flaw to
cause a denial-of-service.


* CVE-2022-42719: Privilege escalation in mac80211 subsystem.

An improper resources management in mac80211 subsystem can lead to
a use after free error. A local attacker able to inject WLAN frames
could use this flaw to cause denial of service or escalate privileges.


* CVE-2022-3564: Use-after-free in Bluetooth L2CAP.

A race condition in Bluetooth L2CAP when a socket buffer is queued and
dequeued by two flows running in parallel can lead to a use-after-free.
A remote attacker could use this flaw for a denial-of-service or
for privilege escalation.


* CVE-2022-3594: Denial-of-service in r8152 USB network driver.

Improper management of logging in the r8152 driver when handling
interrupts can lead to logging of excessive data. A remote attacker
could use this flaw to flood the system logs and hinder the ability to
detect anomalous conditions.


* CVE-2022-3524: Memory-leak in IPv6 networking.

A race condition in IPv6 networking when converting an IPv6 socket into
IPv4 could lead to a memory-leak. A local user could use this flaw to
exhaust the system's memory and cause denial-of-service.


* CVE-2022-3628: Code execution in Broadcom FullMAC USB WiFi driver.

A missing sanity check when setting up the Broadcom FullMAC USB WiFi
driver could result in out-of-bounds access. A physically proximate
user could use this flaw to craft a malicious USB device and cause
a denial-of-service or execute arbitrary code.


* CVE-2022-3640: Use-after-free in Bluetooth subsystem.

A logic flaw in receive data path of the Bluetooth subsystem could
result in a use-after-free. A local user could use this flaw to cause
a denial-of-service or execute arbitrary code.


* CVE-2022-42895: Information disclosure in Bluetooth subsystem.

A missing sanity check when parsing a configuration request in Bluetooth
L2CAP implementation could result in out-of-bounds memory access.
A physically proximate attacker could use this flaw for information
disclosure.


* Improved update to CVE-2021-26932, XSA-361: Denial-of-host-service by 
malicious Xen frontend.

Batched mapping operations can be potentially mishandled by the Linux
Xen backend, resulting in incorrectly reported success or failure of the
operation. Running a malicious or buggy frontend could result in a
denial-of-service on the host.


* Note: Oracle has determined that CVE-2022-3542 is not applicable.

The kernel is not affected by CVE-2022-3542 since the code under
consideration is not compiled.

SUPPORT

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