==========================================================================
Ubuntu Security Notice USN-7332-2
March 11, 2025

linux-kvm vulnerabilities
==========================================================================

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

- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-kvm: Linux kernel for cloud environments

Details:

Attila Szász discovered that the HFS+ file system implementation in the
Linux Kernel contained a heap overflow vulnerability. An attacker could use
a specially crafted file system image that, when mounted, could cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2025-0927)

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:
  - PowerPC architecture;
  - Block layer subsystem;
  - GPIO subsystem;
  - GPU drivers;
  - Media drivers;
  - Network drivers;
  - SCSI subsystem;
  - Direct Digital Synthesis drivers;
  - TTY drivers;
  - 9P distributed file system;
  - JFS file system;
  - NILFS2 file system;
  - File systems infrastructure;
  - BPF subsystem;
  - Netfilter;
  - Network sockets;
  - Memory management;
  - Amateur Radio drivers;
  - B.A.T.M.A.N. meshing protocol;
  - Bluetooth subsystem;
  - Ethernet bridge;
  - Networking core;
  - IPv4 networking;
  - IPv6 networking;
  - Netlink;
  - TIPC protocol;
  - Wireless networking;
  - ALSA framework;
(CVE-2024-26685, CVE-2024-50233, CVE-2024-41063, CVE-2024-42070,
CVE-2024-40910, CVE-2024-40911, CVE-2024-36886, CVE-2024-35896,
CVE-2024-43863, CVE-2023-52522, CVE-2024-53156, CVE-2023-52488,
CVE-2024-43854, CVE-2024-44938, CVE-2024-53104, CVE-2024-44931,
CVE-2024-50171, CVE-2024-43892, CVE-2024-50148, CVE-2024-38567,
CVE-2024-36964, CVE-2024-43893, CVE-2024-36952, CVE-2022-48994,
CVE-2021-47606, CVE-2023-52818, CVE-2024-41064, CVE-2024-40981,
CVE-2024-40943, CVE-2024-42068, CVE-2023-52880, CVE-2021-47103,
CVE-2024-43900, CVE-2024-50117, CVE-2023-52799, CVE-2024-49902)

Update instructions:

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

Ubuntu 16.04 LTS
  linux-image-4.4.0-1142-kvm      4.4.0-1142.153
                                  Available with Ubuntu Pro
  linux-image-kvm                 4.4.0.1142.139
                                  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-7332-2
  https://ubuntu.com/security/notices/USN-7332-1
  CVE-2021-47103, CVE-2021-47606, CVE-2022-48994, CVE-2023-52488,
  CVE-2023-52522, CVE-2023-52799, CVE-2023-52818, CVE-2023-52880,
  CVE-2024-26685, CVE-2024-35896, CVE-2024-36886, CVE-2024-36952,
  CVE-2024-36964, CVE-2024-38567, CVE-2024-40910, CVE-2024-40911,
  CVE-2024-40943, CVE-2024-40981, CVE-2024-41063, CVE-2024-41064,
  CVE-2024-42068, CVE-2024-42070, CVE-2024-43854, CVE-2024-43863,
  CVE-2024-43892, CVE-2024-43893, CVE-2024-43900, CVE-2024-44931,
  CVE-2024-44938, CVE-2024-49902, CVE-2024-50117, CVE-2024-50148,
  CVE-2024-50171, CVE-2024-50233, CVE-2024-53104, CVE-2024-53156,
  CVE-2025-0927