[Ksplice][Ubuntu-20.04-Updates] New Ksplice updates for Ubuntu 20.04 Focal (USN-6094-1)

[Oracle Ksplice]

Synopsis: USN-6094-1 can now be patched using Ksplice
CVEs: CVE-2022-3707 CVE-2023-0459 CVE-2023-1075 CVE-2023-1078 CVE-2023-1118 CVE-2023-1513 CVE-2023-2162 CVE-2023-32269

Systems running Ubuntu 20.04 Focal can now use Ksplice to patch
against the latest Ubuntu Security Notice, USN-6094-1.

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-2023-1118: Use-after-free in ENE eHome Receiver/Tranceiver driver.

A logic error in the ENE integrated infrared receiver/transceiver leads
to a use-after-free. A local user can use this flaw to cause
denial-of-service or escalate privileges.


* CVE-2023-32269: Use-after-free in Netrom Sockets.

A race condition in netrom when calling accept on an already connected
socket can 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-2023-2162: Use-after-free during iSCSI login.

A logic error in the iSCSI login path can result in a use-after-free
error.  This flaw could be exploited by a local attacker to cause
a denial-of-service or to aid in another type of attack.


* Incorrect initialization in BTRFS's zlib compression.

Incorrect initialization in BTRFS zlib compression implementation can
lead to use of uninitialized memory.  This can lead to leak of
privileged information or denial-of-service.


* CVE-2023-1078: Out-of-bounds memory access in Reliable Datagram Sockets.

A type confusion in RDS protocol when sending messages can lead to an
out-of-bounds memory access. A local attacker can use this flaw for a
denial-of-service or arbitrary code execution.


* 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 privileged data.


* CVE-2023-1075: Information disclosure in Transport Layer Security support.

A type confusion error in TLS support when checking for list emptiness
in tls_is_tx_ready() may lead to a read to an unauthorized memory
location. A local attacker could use this flaw to expose sensitive
information from the kernel.


* CVE-2023-0459: Information leak during userspace access.

Improper handling of user-provided pointers can result in a kernel
information leak.  This flaw could be exploited by an attacker to leak
sensitive information and to aid in other types of attacks.


* CVE-2022-3707: Double-free in Intel GVT-g graphics driver.

Incorrect error handling in the Intel GVT-g graphics driver can lead to a
double free. This can allow a local user to cause denial-of-service.

SUPPORT

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