=========================================================================
Ubuntu Security Notice USN-7028-1
September 23, 2024

linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp,
linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS
- Ubuntu 16.04 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-azure-4.15: Linux kernel for Microsoft Azure Cloud systems
- linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems
- linux-kvm: Linux kernel for cloud environments
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
- linux-hwe: Linux hardware enablement (HWE) kernel

Details:

It was discovered that the JFS file system contained an out-of-bounds read
vulnerability when printing xattr debug information. A local attacker could
use this to cause a denial of service (system crash).

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:
  - GPU drivers;
  - Greybus drivers;
  - Modular ISDN driver;
  - Multiple devices driver;
  - Network drivers;
  - SCSI drivers;
  - VFIO drivers;
  - F2FS file system;
  - GFS2 file system;
  - JFS file system;
  - NILFS2 file system;
  - Kernel debugger infrastructure;
  - Bluetooth subsystem;
  - IPv4 networking;
  - L2TP protocol;
  - Netfilter;
  - RxRPC session sockets;
(CVE-2024-42154, CVE-2023-52527, CVE-2024-26733, CVE-2024-42160,
CVE-2021-47188, CVE-2024-38570, CVE-2024-26851, CVE-2024-26984,
CVE-2024-26677, CVE-2024-39480, CVE-2024-27398, CVE-2022-48791,
CVE-2024-42224, CVE-2024-38583, CVE-2024-40902, CVE-2023-52809,
CVE-2024-39495, CVE-2024-26651, CVE-2024-26880, CVE-2024-42228,
CVE-2024-27437, CVE-2022-48863)

Update instructions:

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

Ubuntu 18.04 LTS
  linux-image-4.15.0-1135-oracle  4.15.0-1135.146
          Available with Ubuntu Pro
  linux-image-4.15.0-1156-kvm     4.15.0-1156.161
          Available with Ubuntu Pro
  linux-image-4.15.0-1166-gcp     4.15.0-1166.183
          Available with Ubuntu Pro
  linux-image-4.15.0-1173-aws     4.15.0-1173.186
          Available with Ubuntu Pro
  linux-image-4.15.0-1181-azure   4.15.0-1181.196
          Available with Ubuntu Pro
  linux-image-4.15.0-229-generic  4.15.0-229.241
          Available with Ubuntu Pro
  linux-image-4.15.0-229-lowlatency  4.15.0-229.241
          Available with Ubuntu Pro
  linux-image-aws-lts-18.04       4.15.0.1173.171
          Available with Ubuntu Pro
  linux-image-azure-lts-18.04     4.15.0.1181.149
          Available with Ubuntu Pro
  linux-image-gcp-lts-18.04       4.15.0.1166.179
          Available with Ubuntu Pro
  linux-image-generic             4.15.0.229.213
          Available with Ubuntu Pro
  linux-image-kvm                 4.15.0.1156.147
          Available with Ubuntu Pro
  linux-image-lowlatency          4.15.0.229.213
          Available with Ubuntu Pro
  linux-image-oracle-lts-18.04    4.15.0.1135.140
          Available with Ubuntu Pro
  linux-image-virtual             4.15.0.229.213
          Available with Ubuntu Pro

Ubuntu 16.04 LTS
  linux-image-4.15.0-1135-oracle  4.15.0-1135.146~16.04.1
          Available with Ubuntu Pro
  linux-image-4.15.0-1166-gcp     4.15.0-1166.183~16.04.1
          Available with Ubuntu Pro
  linux-image-4.15.0-1173-aws     4.15.0-1173.186~16.04.1
          Available with Ubuntu Pro
  linux-image-4.15.0-1181-azure   4.15.0-1181.196~16.04.1
          Available with Ubuntu Pro
  linux-image-4.15.0-229-generic  4.15.0-229.241~16.04.1
          Available with Ubuntu Pro
  linux-image-4.15.0-229-lowlatency  4.15.0-229.241~16.04.1
          Available with Ubuntu Pro
  linux-image-aws-hwe             4.15.0.1173.186~16.04.1
          Available with Ubuntu Pro
  linux-image-azure               4.15.0.1181.196~16.04.1
          Available with Ubuntu Pro
  linux-image-gcp                 4.15.0.1166.183~16.04.1
          Available with Ubuntu Pro
  linux-image-generic-hwe-16.04   4.15.0.229.241~16.04.1
          Available with Ubuntu Pro
  linux-image-gke                 4.15.0.1166.183~16.04.1
          Available with Ubuntu Pro
  linux-image-lowlatency-hwe-16.04  4.15.0.229.241~16.04.1
          Available with Ubuntu Pro
  linux-image-oem                 4.15.0.229.241~16.04.1
          Available with Ubuntu Pro
  linux-image-oracle              4.15.0.1135.146~16.04.1
          Available with Ubuntu Pro
  linux-image-virtual-hwe-16.04   4.15.0.229.241~16.04.1
          Available with Ubuntu Pro

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-7028-1
  CVE-2021-47188, CVE-2022-48791, CVE-2022-48863, CVE-2023-52527,
  CVE-2023-52809, CVE-2024-26651, CVE-2024-26677, CVE-2024-26733,
  CVE-2024-26851, CVE-2024-26880, CVE-2024-26984, CVE-2024-27398,
  CVE-2024-27437, CVE-2024-38570, CVE-2024-38583, CVE-2024-39480,
  CVE-2024-39495, CVE-2024-40902, CVE-2024-42154, CVE-2024-42160,
  CVE-2024-42224, CVE-2024-42228