Ubuntu 24.04 LTS: USN-6921-1 Critical: Linux Kernel Security Issues

ubuntu

July 29, 2024

Several security issues were fixed in the Linux kernel.

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-ibm: Linux kernel for IBM cloud systems

- linux-nvidia: Linux kernel for NVIDIA systems

- linux-oem-6.8: Linux kernel for OEM systems

- linux-raspi: Linux kernel for Raspberry Pi systems

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 Lin...

Read the Full Advisory

Topics Covered

security advisory kernel update malicious code ubuntu linux-aws linux-gcp linux-raspi

Update Instructions

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

Ubuntu 24.04 LTS
  linux-image-6.8.0-1007-gke      6.8.0-1007.10
  linux-image-6.8.0-1008-raspi    6.8.0-1008.8
  linux-image-6.8.0-1009-ibm      6.8.0-1009.9
  linux-image-6.8.0-1009-oem      6.8.0-1009.9
  linux-image-6.8.0-1010-nvidia   6.8.0-1010.10
  linux-image-6.8.0-1010-nvidia-64k  6.8.0-1010.10
  linux-image-6.8.0-1011-gcp      6.8.0-1011.12
  linux-image-6.8.0-1012-aws      6.8.0-1012.13
  linux-image-6.8.0-39-generic    6.8.0-39.39
  linux-image-6.8.0-39-generic-64k  6.8.0-39.39
  linux-image-aws                 6.8.0-1012.13
  linux-image-gcp                 6.8.0-1011.12
  linux-image-generic             6.8.0-39.39
  linux-image-generic-64k         6.8.0-39.39
  linux-image-generic-64k-hwe-24.04  6.8.0-39.39
  linux-image-generic-hwe-24.04   6.8.0-39.39
  linux-image-generic-lpae        6.8.0-39.39
  linux-image-gke                 6.8.0-1007.10
  linux-image-ibm                 6.8.0-1009.9
  linux-image-ibm-classic         6.8.0-1009.9
  linux-image-ibm-lts-24.04       6.8.0-1009.9
  linux-image-kvm                 6.8.0-39.39
  linux-image-nvidia              6.8.0-1010.10
  linux-image-nvidia-64k          6.8.0-1010.10
  linux-image-oem-24.04           6.8.0-1009.9
  linux-image-oem-24.04a          6.8.0-1009.9
  linux-image-raspi               6.8.0-1008.8
  linux-image-virtual             6.8.0-39.39
  linux-image-virtual-hwe-24.04   6.8.0-39.39

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.