==========================================================================
Ubuntu Security Notice USN-6923-1
July 29, 2024

linux, linux-aws, linux-gcp, linux-gke, linux-gkeop, linux-gkeop-5.15,
linux-hwe-5.15, linux-intel-iotg, linux-intel-iotg-5.15, linux-kvm,
linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle
vulnerabilities
==========================================================================

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

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

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-gke: Linux kernel for Google Container Engine (GKE) systems
- linux-gkeop: Linux kernel for Google Container Engine (GKE) systems
- linux-intel-iotg: Linux kernel for Intel IoT platforms
- linux-kvm: Linux kernel for cloud environments
- linux-lowlatency: Linux low latency kernel
- linux-nvidia: Linux kernel for NVIDIA systems
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-gkeop-5.15: Linux kernel for Google Container Engine (GKE) systems
- linux-hwe-5.15: Linux hardware enablement (HWE) kernel
- linux-intel-iotg-5.15: Linux kernel for Intel IoT platforms
- linux-lowlatency-hwe-5.15: Linux low latency kernel

Details:

Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde
discovered that an untrusted hypervisor could inject malicious #VC
interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw
is known as WeSee. A local attacker in control of the hypervisor could use
this to expose sensitive information or possibly execute arbitrary code in
the trusted execution environment. (CVE-2024-25742)

Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
  - TTY drivers;
  - SMB network file system;
  - Netfilter;
  - Bluetooth subsystem;
(CVE-2024-26886, CVE-2024-26952, CVE-2023-52752, CVE-2024-27017,
CVE-2024-36016)

Update instructions:

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

Ubuntu 22.04 LTS
  linux-image-5.15.0-1049-gkeop   5.15.0-1049.56
  linux-image-5.15.0-1061-intel-iotg  5.15.0-1061.67
  linux-image-5.15.0-1061-nvidia  5.15.0-1061.62
  linux-image-5.15.0-1061-nvidia-lowlatency  5.15.0-1061.62
  linux-image-5.15.0-1063-gke     5.15.0-1063.69
  linux-image-5.15.0-1063-kvm     5.15.0-1063.68
  linux-image-5.15.0-1064-oracle  5.15.0-1064.70
  linux-image-5.15.0-1065-gcp     5.15.0-1065.73
  linux-image-5.15.0-1066-aws     5.15.0-1066.72
  linux-image-5.15.0-117-generic  5.15.0-117.127
  linux-image-5.15.0-117-generic-64k  5.15.0-117.127
  linux-image-5.15.0-117-generic-lpae  5.15.0-117.127
  linux-image-5.15.0-117-lowlatency  5.15.0-117.127
  linux-image-5.15.0-117-lowlatency-64k  5.15.0-117.127
  linux-image-aws-lts-22.04       5.15.0.1066.66
  linux-image-gcp-lts-22.04       5.15.0.1065.61
  linux-image-generic             5.15.0.117.117
  linux-image-generic-64k         5.15.0.117.117
  linux-image-generic-lpae        5.15.0.117.117
  linux-image-gke                 5.15.0.1063.62
  linux-image-gke-5.15            5.15.0.1063.62
  linux-image-gkeop               5.15.0.1049.48
  linux-image-gkeop-5.15          5.15.0.1049.48
  linux-image-intel-iotg          5.15.0.1061.61
  linux-image-kvm                 5.15.0.1063.59
  linux-image-lowlatency          5.15.0.117.107
  linux-image-lowlatency-64k      5.15.0.117.107
  linux-image-nvidia              5.15.0.1061.61
  linux-image-nvidia-lowlatency   5.15.0.1061.61
  linux-image-oracle-lts-22.04    5.15.0.1064.60
  linux-image-virtual             5.15.0.117.117

Ubuntu 20.04 LTS
  linux-image-5.15.0-1049-gkeop   5.15.0-1049.56~20.04.1
  linux-image-5.15.0-1061-intel-iotg  5.15.0-1061.67~20.04.1
  linux-image-5.15.0-117-generic  5.15.0-117.127~20.04.1
  linux-image-5.15.0-117-generic-64k  5.15.0-117.127~20.04.1
  linux-image-5.15.0-117-generic-lpae  5.15.0-117.127~20.04.1
  linux-image-5.15.0-117-lowlatency  5.15.0-117.127~20.04.1
  linux-image-5.15.0-117-lowlatency-64k  5.15.0-117.127~20.04.1
  linux-image-generic-64k-hwe-20.04  5.15.0.117.127~20.04.1
  linux-image-generic-hwe-20.04   5.15.0.117.127~20.04.1
  linux-image-generic-lpae-hwe-20.04  5.15.0.117.127~20.04.1
  linux-image-gkeop-5.15          5.15.0.1049.56~20.04.1
  linux-image-intel               5.15.0.1061.67~20.04.1
  linux-image-intel-iotg          5.15.0.1061.67~20.04.1
  linux-image-lowlatency-64k-hwe-20.04  5.15.0.117.127~20.04.1
  linux-image-lowlatency-hwe-20.04  5.15.0.117.127~20.04.1
  linux-image-oem-20.04           5.15.0.117.127~20.04.1
  linux-image-oem-20.04b          5.15.0.117.127~20.04.1
  linux-image-oem-20.04c          5.15.0.117.127~20.04.1
  linux-image-oem-20.04d          5.15.0.117.127~20.04.1
  linux-image-virtual-hwe-20.04   5.15.0.117.127~20.04.1

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-6923-1
  CVE-2023-52752, CVE-2024-25742, CVE-2024-26886, CVE-2024-26952,
  CVE-2024-27017, CVE-2024-36016

Package Information:
  https://launchpad.net/ubuntu/+source/linux/5.15.0-117.127
  https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1066.72
  https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1065.73
  https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1063.69
  https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1049.56
  https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1061.67
  https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1063.68
  https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-117.127
  https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1061.62
  https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1064.70
  https://launchpad.net/ubuntu/+source/linux-gkeop-5.15/5.15.0-1049.56~20.04.1
  https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-117.127~20.04.1
  https://launchpad.net/ubuntu/+source/linux-intel-iotg-5.15/5.15.0-1061.67~20.04.1
  https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-117.127~20.04.1