==========================================================================
Ubuntu Security Notice USN-5754-1
December 01, 2022

linux, linux-aws, linux-gcp, linux-ibm, linux-kvm, linux-lowlatency,
linux-oracle, linux-raspi vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.10

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux: Linux kernel
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-ibm: Linux kernel for IBM cloud systems
- linux-kvm: Linux kernel for cloud environments
- linux-lowlatency: Linux low latency kernel
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-raspi: Linux kernel for Raspberry Pi systems

Details:

It was discovered that the NFSD implementation in the Linux kernel did not
properly handle some RPC messages, leading to a buffer overflow. A remote
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2022-43945)

It was discovered that a memory leak existed in the IPv6 implementation of
the Linux kernel. A local attacker could use this to cause a denial of
service (memory exhaustion). (CVE-2022-3524)

It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel, leading to a use-after-free vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2022-3564)

It was discovered that the ISDN implementation of the Linux kernel
contained a use-after-free vulnerability. A privileged user could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-3565)

It was discovered that the TCP implementation in the Linux kernel contained
a data race condition. An attacker could possibly use this to cause
undesired behaviors. (CVE-2022-3566)

It was discovered that the IPv6 implementation in the Linux kernel
contained a data race condition. An attacker could possibly use this to
cause undesired behaviors. (CVE-2022-3567)

It was discovered that the Realtek RTL8152 USB Ethernet adapter driver in
the Linux kernel did not properly handle certain error conditions. A local
attacker with physical access could plug in a specially crafted USB device
to cause a denial of service (memory exhaustion). (CVE-2022-3594)

It was discovered that a null pointer dereference existed in the NILFS2
file system implementation in the Linux kernel. A local attacker could use
this to cause a denial of service (system crash). (CVE-2022-3621)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.10:
   linux-image-5.19.0-1009-raspi   5.19.0-1009.16
   linux-image-5.19.0-1009-raspi-nolpae  5.19.0-1009.16
   linux-image-5.19.0-1012-lowlatency  5.19.0-1012.13
   linux-image-5.19.0-1012-lowlatency-64k  5.19.0-1012.13
   linux-image-5.19.0-1013-gcp     5.19.0-1013.14
   linux-image-5.19.0-1013-ibm     5.19.0-1013.14
   linux-image-5.19.0-1013-kvm     5.19.0-1013.14
   linux-image-5.19.0-1013-oracle  5.19.0-1013.14
   linux-image-5.19.0-1014-aws     5.19.0-1014.15
   linux-image-5.19.0-26-generic   5.19.0-26.27
   linux-image-5.19.0-26-generic-64k  5.19.0-26.27
   linux-image-5.19.0-26-generic-lpae  5.19.0-26.27
   linux-image-aws                 5.19.0.1014.11
   linux-image-gcp                 5.19.0.1013.10
   linux-image-generic             5.19.0.26.23
   linux-image-generic-64k         5.19.0.26.23
   linux-image-generic-lpae        5.19.0.26.23
   linux-image-ibm                 5.19.0.1013.10
   linux-image-kvm                 5.19.0.1013.10
   linux-image-lowlatency          5.19.0.1012.9
   linux-image-lowlatency-64k      5.19.0.1012.9
   linux-image-oracle              5.19.0.1013.10
   linux-image-raspi               5.19.0.1009.8
   linux-image-raspi-nolpae        5.19.0.1009.8
   linux-image-virtual             5.19.0.26.23

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
   https://ubuntu.com/security/notices/USN-5754-1
   CVE-2022-3524, CVE-2022-3564, CVE-2022-3565, CVE-2022-3566,
   CVE-2022-3567, CVE-2022-3594, CVE-2022-3621, CVE-2022-43945

Package Information:
   https://launchpad.net/ubuntu/+source/linux/5.19.0-26.27
   https://launchpad.net/ubuntu/+source/linux-aws/5.19.0-1014.15
   https://launchpad.net/ubuntu/+source/linux-gcp/5.19.0-1013.14
   https://launchpad.net/ubuntu/+source/linux-ibm/5.19.0-1013.14
   https://launchpad.net/ubuntu/+source/linux-kvm/5.19.0-1013.14
   https://launchpad.net/ubuntu/+source/linux-lowlatency/5.19.0-1012.13
   https://launchpad.net/ubuntu/+source/linux-oracle/5.19.0-1013.14
   https://launchpad.net/ubuntu/+source/linux-raspi/5.19.0-1009.16