==========================================================================
Ubuntu Security Notice USN-7185-2
January 09, 2025

linux-azure, linux-azure-4.15 vulnerabilities
==========================================================================

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-azure-4.15: Linux kernel for Microsoft Azure Cloud systems
- linux-azure: Linux kernel for Microsoft Azure Cloud systems

Details:

Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the Linux
kernel contained an integer overflow vulnerability. A local attacker could
use this to cause a denial of service (system crash). (CVE-2022-36402)

Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver
in the Linux kernel during device removal. A privileged attacker could use
this to cause a denial of service (system crash). (CVE-2023-35827)

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;
   - I2C subsystem;
   - InfiniBand drivers;
   - IRQ chip drivers;
   - Network drivers;
   - Pin controllers subsystem;
   - S/390 drivers;
   - TTY drivers;
   - USB Host Controller drivers;
   - USB Mass Storage drivers;
   - Framebuffer layer;
   - Ext4 file system;
   - File systems infrastructure;
   - Bluetooth subsystem;
   - DMA mapping infrastructure;
   - Memory management;
   - 9P file system network protocol;
   - IPv4 networking;
   - IPv6 networking;
   - Logical Link layer;
   - MAC80211 subsystem;
   - Netfilter;
   - NFC subsystem;
   - Phonet protocol;
   - Network traffic control;
   - VMware vSockets driver;
   - Wireless networking;
(CVE-2024-42090, CVE-2024-42156, CVE-2021-47082, CVE-2024-26921,
CVE-2023-52594, CVE-2024-36968, CVE-2024-38633, CVE-2024-42077,
CVE-2021-47076, CVE-2021-47501, CVE-2023-52507, CVE-2024-42153,
CVE-2024-39301, CVE-2024-36946, CVE-2024-43884, CVE-2023-52509,
CVE-2024-36004, CVE-2023-52486, CVE-2024-50264, CVE-2024-45006,
CVE-2024-36941, CVE-2024-43856, CVE-2024-40912, CVE-2024-49967,
CVE-2024-53057, CVE-2024-26777, CVE-2024-36270, CVE-2024-26625,
CVE-2024-45021, CVE-2024-35886, CVE-2024-44947, CVE-2024-44944,
CVE-2024-35847, CVE-2024-40959, CVE-2024-42101, CVE-2024-38619)

Update instructions:

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

Ubuntu 18.04 LTS
   linux-image-4.15.0-1184-azure   4.15.0-1184.199
                                   Available with Ubuntu Pro
   linux-image-azure-lts-18.04     4.15.0.1184.152
                                   Available with Ubuntu Pro

Ubuntu 16.04 LTS
   linux-image-4.15.0-1184-azure   4.15.0-1184.199~16.04.1
                                   Available with Ubuntu Pro
   linux-image-azure               4.15.0.1184.199~16.04.1
                                   Available with Ubuntu Pro

Ubuntu 14.04 LTS
   linux-image-4.15.0-1184-azure   4.15.0-1184.199~14.04.1
                                   Available with Ubuntu Pro
   linux-image-azure               4.15.0.1184.199~14.04.1
                                   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-7185-2
   https://ubuntu.com/security/notices/USN-7185-1
   CVE-2021-47076, CVE-2021-47082, CVE-2021-47501, CVE-2022-36402,
   CVE-2023-35827, CVE-2023-52486, CVE-2023-52507, CVE-2023-52509,
   CVE-2023-52594, CVE-2024-26625, CVE-2024-26777, CVE-2024-26921,
   CVE-2024-35847, CVE-2024-35886, CVE-2024-36004, CVE-2024-36270,
   CVE-2024-36941, CVE-2024-36946, CVE-2024-36968, CVE-2024-38619,
   CVE-2024-38633, CVE-2024-39301, CVE-2024-40912, CVE-2024-40959,
   CVE-2024-42077, CVE-2024-42090, CVE-2024-42101, CVE-2024-42153,
   CVE-2024-42156, CVE-2024-43856, CVE-2024-43884, CVE-2024-44944,
   CVE-2024-44947, CVE-2024-45006, CVE-2024-45021, CVE-2024-49967,
   CVE-2024-50264, CVE-2024-53057