[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (USN-6284-1)

[Oracle Ksplice]

Synopsis: USN-6284-1 can now be patched using Ksplice
CVEs: CVE-2020-36691 CVE-2022-0168 CVE-2022-1184 CVE-2022-27672 CVE-2022-4269 CVE-2022-4744 CVE-2023-0590 CVE-2023-1611 CVE-2023-1855 CVE-2023-1990 CVE-2023-2124 CVE-2023-2194 CVE-2023-28466 CVE-2023-30772 CVE-2023-3111 CVE-2023-3141 CVE-2023-33203

Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-6284-1.

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-2022-4269: Denial-of-service in Traffic Control subsystem.

A flaw in the Traffic Control subsystem when the transport protocol in
use (TCP or SCTP) does a retransmission could result in a deadlock.
A local unprivileged user could use this flaw for denial-of-service.


* Improved update to CVE-2022-1184: Use-after-free in ext4 filesystem.

A flaw in ext4 filesystem when mounting and operating on a corrupted
image could lead to a use-after-free. A local user could use this flaw
to cause a denial-of-service or elevate privileges on the system.


* CVE-2023-2124: Denial-of-service in XFS file system during image restoration.

Insufficient checks in XFS during image restoration after a failure
with a dirty log journal can lead to out-of-bounds memory access flaw.
A local attacker can use this flaw to cause denial-of-service or to
escalate their privileges.


* CVE-2023-28466: Race condition in Transport Layer Security subsystem.

A race condition in the Transport Layer Security (TLS) subsystem between
getsockopt() and setsockopt() operations can lead to use-after-free or null
dereference. This can allow a local user to cause denial-of-service.


* CVE-2023-0590: Use-after-free in network scheduler.

A race condition in net scheduler when dropping the reference of a queue
discipline object in qdisc_graft() may lead to a use-after-free. A local
user could use this flaw to cause a denial-of-service.


* CVE-2023-1611: Use-after-free in the BTRFS filesystem.

A use-after-free is possible in the BTRFS file system when a quota assign ioctl
and quota disable ioctls run concurrently. A local user could use this flaw to
cause a denial-of-service or execute arbitrary code.


* CVE-2023-3141: Use-after-free in the r592 driver's device removal path.

A race condition can occur when removing an r592 device that can lead to
a use-after-free.  This flaw could be exploited by a local attacker to
cause a denial-of-service, or to leak sensitive information from kernel
memory.


* Note: Oracle has determined that CVE-2023-2194 is not applicable.

Insufficient user input validation in the APM X-Gene SoC I2C SLIMpro device
driver could allow writing beyond the end of a buffer. This could allow a
local privileged user to crash the system or execute incorrect code.

The kernel is not affected by CVE-2023-2194 since the code under
consideration is not compiled.


* CVE-2023-1990: Use-after-free in the STMicroelectronics NFC NCI driver on removal.

A race condition when removing a STMicroelectronics NFC NCI device could
lead to a use-after-free.  A privileged user could use this flaw to cause a
denial-of-service.


* CVE-2023-1855: Use-after-free in APM X-Gene SoC hardware monitoring driver.

A logic error in the APM X-Gene SoC hardware monitoring driver leads to a
use-after-free. A local user can use this flaw to cause denial-of-service or
leak information.


* CVE-2023-30772: Use-after-free in Dialog Semiconductor DA9150 driver.

A logic error in the Dialog Semiconductor DA9150 driver leads to a
use-after-free. A local, privileged user can use this flaw to cause
denial-of-service.


* CVE-2023-33203: Use-after-free in Qualcomm EMAC Gigabit Ethernet Driver.

Incorrect cleanup logic in the Qualcomm Ethernet Media Access Controller
(EMAC) Driver can cause a use-after-free when an emac based device is
removed. This can allow a user with physical access to escalate privileges
or cause undefined behavior.


* CVE-2022-0168: Denial-of-service in Common Internet File System.

A logic flaw in Common Internet File System (CIFS) in the QUERY_INFO
ioctl leads to incorrect error handling.  This allows a local,
privileged user to cause denial-of-service.


* CVE-2023-3111: Use-after-free in the Btrfs filesystem when a transaction fails.

An incorrect error handling logic in the Btrfs filesystem when a
transaction fails could lead to a use-after-free.  An attacker could use
this flaw to cause a denial-of-service or potentially escalate its
privileges.


* CVE-2020-36691: Denial-of-service in the Netlink library.

An unbounded recursion in the Netlink library when validating the Netlink
policy could lead to a stack overflow.  A local user could use this flaw to
cause a denial-of-service.


* CVE-2022-4744: Privilege escalation in TUN/TAP device driver.

A flaw in the TUN/TAP device driver when freing a device could result in
a double-free. A local user could use this flaw for denial-of-service or
privilege escalation.


* CVE-2022-27672: Information disclosure due to Cross-Thread Return Address Predictions.

When SMT (simultaneous multithreading) is enabled, certain AMD processors
may speculatively execute instructions using a target from the sibling thread.
This can potentially lead to information disclosure.

SUPPORT

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