==========================================================================
Ubuntu Security Notice USN-6951-3
August 19, 2024

linux-azure-5.4 vulnerabilities
==========================================================================

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

- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems

Details:

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:
   - ARM64 architecture;
   - M68K architecture;
   - User-Mode Linux (UML);
   - x86 architecture;
   - Accessibility subsystem;
   - Character device driver;
   - Clock framework and drivers;
   - CPU frequency scaling framework;
   - Hardware crypto device drivers;
   - Buffer Sharing and Synchronization framework;
   - FireWire subsystem;
   - GPU drivers;
   - HW tracing;
   - Macintosh device drivers;
   - Multiple devices driver;
   - Media drivers;
   - Network drivers;
   - Pin controllers subsystem;
   - S/390 drivers;
   - SCSI drivers;
   - SoundWire subsystem;
   - Greybus lights staging drivers;
   - TTY drivers;
   - Framebuffer layer;
   - Virtio drivers;
   - 9P distributed file system;
   - eCrypt file system;
   - EROFS file system;
   - Ext4 file system;
   - F2FS file system;
   - JFFS2 file system;
   - Network file system client;
   - NILFS2 file system;
   - SMB network file system;
   - Kernel debugger infrastructure;
   - IRQ subsystem;
   - Tracing infrastructure;
   - Dynamic debug library;
   - 9P file system network protocol;
   - Bluetooth subsystem;
   - Networking core;
   - IPv4 networking;
   - IPv6 networking;
   - Netfilter;
   - NET/ROM layer;
   - NFC subsystem;
   - NSH protocol;
   - Open vSwitch;
   - Phonet protocol;
   - TIPC protocol;
   - Unix domain sockets;
   - Wireless networking;
   - eXpress Data Path;
   - XFRM subsystem;
   - ALSA framework;
(CVE-2024-36934, CVE-2024-38578, CVE-2024-38600, CVE-2024-27399,
CVE-2024-39276, CVE-2024-38596, CVE-2024-36933, CVE-2024-36919,
CVE-2024-35976, CVE-2024-37356, CVE-2023-52585, CVE-2024-38558,
CVE-2024-38560, CVE-2024-38634, CVE-2024-36959, CVE-2024-38633,
CVE-2024-36886, CVE-2024-27398, CVE-2024-39493, CVE-2024-26886,
CVE-2024-31076, CVE-2024-38559, CVE-2024-38615, CVE-2024-36971,
CVE-2024-38627, CVE-2024-36964, CVE-2024-38780, CVE-2024-37353,
CVE-2024-38621, CVE-2024-36883, CVE-2024-39488, CVE-2024-38661,
CVE-2024-36939, CVE-2024-38589, CVE-2024-38565, CVE-2024-38381,
CVE-2024-35947, CVE-2024-36905, CVE-2022-48772, CVE-2024-36017,
CVE-2024-36946, CVE-2024-27401, CVE-2024-38579, CVE-2024-38612,
CVE-2024-38598, CVE-2024-38635, CVE-2024-38587, CVE-2024-38567,
CVE-2024-38549, CVE-2024-36960, CVE-2023-52752, CVE-2024-27019,
CVE-2024-38601, CVE-2024-39489, CVE-2024-39467, CVE-2023-52882,
CVE-2024-38583, CVE-2024-39480, CVE-2024-38607, CVE-2024-36940,
CVE-2024-38659, CVE-2023-52434, CVE-2024-36015, CVE-2024-38582,
CVE-2024-36950, CVE-2024-38552, CVE-2024-33621, CVE-2024-36954,
CVE-2024-39475, CVE-2024-39301, CVE-2024-38599, CVE-2024-36902,
CVE-2024-36286, CVE-2024-38613, CVE-2024-38637, CVE-2024-36941,
CVE-2024-36014, CVE-2024-38618, CVE-2024-36904, CVE-2024-36270,
CVE-2024-39292, CVE-2024-39471, CVE-2022-48674)

Update instructions:

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

Ubuntu 18.04 LTS
   linux-image-5.4.0-1135-azure    5.4.0-1135.142~18.04.1
                                   Available with Ubuntu Pro
   linux-image-azure               5.4.0.1135.142~18.04.1
                                   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-6951-3
   https://ubuntu.com/security/notices/USN-6951-2
   https://ubuntu.com/security/notices/USN-6951-1
   CVE-2022-48674, CVE-2022-48772, CVE-2023-52434, CVE-2023-52585,
   CVE-2023-52752, CVE-2023-52882, CVE-2024-26886, CVE-2024-27019,
   CVE-2024-27398, CVE-2024-27399, CVE-2024-27401, CVE-2024-31076,
   CVE-2024-33621, CVE-2024-35947, CVE-2024-35976, CVE-2024-36014,
   CVE-2024-36015, CVE-2024-36017, CVE-2024-36270, CVE-2024-36286,
   CVE-2024-36883, CVE-2024-36886, CVE-2024-36902, CVE-2024-36904,
   CVE-2024-36905, CVE-2024-36919, CVE-2024-36933, CVE-2024-36934,
   CVE-2024-36939, CVE-2024-36940, CVE-2024-36941, CVE-2024-36946,
   CVE-2024-36950, CVE-2024-36954, CVE-2024-36959, CVE-2024-36960,
   CVE-2024-36964, CVE-2024-36971, CVE-2024-37353, CVE-2024-37356,
   CVE-2024-38381, CVE-2024-38549, CVE-2024-38552, CVE-2024-38558,
   CVE-2024-38559, CVE-2024-38560, CVE-2024-38565, CVE-2024-38567,
   CVE-2024-38578, CVE-2024-38579, CVE-2024-38582, CVE-2024-38583,
   CVE-2024-38587, CVE-2024-38589, CVE-2024-38596, CVE-2024-38598,
   CVE-2024-38599, CVE-2024-38600, CVE-2024-38601, CVE-2024-38607,
   CVE-2024-38612, CVE-2024-38613, CVE-2024-38615, CVE-2024-38618,
   CVE-2024-38621, CVE-2024-38627, CVE-2024-38633, CVE-2024-38634,
   CVE-2024-38635, CVE-2024-38637, CVE-2024-38659, CVE-2024-38661,
   CVE-2024-38780, CVE-2024-39276, CVE-2024-39292, CVE-2024-39301,
   CVE-2024-39467, CVE-2024-39471, CVE-2024-39475, CVE-2024-39480,
   CVE-2024-39488, CVE-2024-39489, CVE-2024-39493