==========================================================================
Ubuntu Security Notice USN-6956-1
August 12, 2024

linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15
vulnerabilities
==========================================================================

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

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-azure-fde: Linux kernel for Microsoft Azure CVM cloud systems
- linux-azure-5.15: Linux kernel for Microsoft Azure cloud systems
- linux-azure-fde-5.15: Linux kernel for Microsoft Azure CVM cloud 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 Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
   - ARM32 architecture;
   - ARM64 architecture;
   - Block layer subsystem;
   - Bluetooth drivers;
   - Clock framework and drivers;
   - FireWire subsystem;
   - GPU drivers;
   - InfiniBand drivers;
   - Multiple devices driver;
   - EEPROM drivers;
   - Network drivers;
   - Pin controllers subsystem;
   - Remote Processor subsystem;
   - S/390 drivers;
   - SCSI drivers;
   - TTY drivers;
   - 9P distributed file system;
   - Network file system client;
   - SMB network file system;
   - Socket messages infrastructure;
   - Dynamic debug library;
   - Bluetooth subsystem;
   - Networking core;
   - IPv4 networking;
   - IPv6 networking;
   - Multipath TCP;
   - Netfilter;
   - NSH protocol;
   - Phonet protocol;
   - TIPC protocol;
   - Wireless networking;
   - Key management;
   - ALSA framework;
   - HD-audio driver;
(CVE-2024-36933, CVE-2024-36960, CVE-2024-26936, CVE-2024-36975,
CVE-2023-52882, CVE-2024-27401, CVE-2024-36929, CVE-2024-36939,
CVE-2024-35947, CVE-2024-36883, CVE-2024-26886, CVE-2024-36952,
CVE-2024-36950, CVE-2024-36940, CVE-2024-36897, CVE-2023-52585,
CVE-2024-26900, CVE-2024-36959, CVE-2024-36928, CVE-2024-36938,
CVE-2024-36016, CVE-2024-36965, CVE-2024-36967, CVE-2024-36889,
CVE-2024-36905, CVE-2024-36969, CVE-2024-36916, CVE-2024-36954,
CVE-2024-27017, CVE-2024-36941, CVE-2024-36957, CVE-2024-27399,
CVE-2024-36937, CVE-2024-36955, CVE-2024-38600, CVE-2023-52752,
CVE-2024-36953, CVE-2024-26980, CVE-2024-36902, CVE-2024-26952,
CVE-2024-36904, CVE-2024-36964, CVE-2024-36946, CVE-2024-36880,
CVE-2024-36906, CVE-2024-36947, CVE-2024-36886, CVE-2024-36934,
CVE-2024-35848, CVE-2024-36919, CVE-2024-36017, CVE-2024-36944,
CVE-2024-36931, CVE-2024-27398)

Update instructions:

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

Ubuntu 22.04 LTS
   linux-image-5.15.0-1070-azure   5.15.0-1070.79
   linux-image-5.15.0-1070-azure-fde  5.15.0-1070.79.1
   linux-image-azure-fde-lts-22.04  5.15.0.1070.79.47
   linux-image-azure-lts-22.04     5.15.0.1070.68

Ubuntu 20.04 LTS
   linux-image-5.15.0-1070-azure   5.15.0-1070.79~20.04.1
   linux-image-5.15.0-1070-azure-fde  5.15.0-1070.79~20.04.1.1
   linux-image-azure               5.15.0.1070.79~20.04.1
   linux-image-azure-cvm           5.15.0.1070.79~20.04.1
   linux-image-azure-fde           5.15.0.1070.79~20.04.1.47

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-6956-1
   CVE-2023-52585, CVE-2023-52752, CVE-2023-52882, CVE-2024-25742,
   CVE-2024-26886, CVE-2024-26900, CVE-2024-26936, CVE-2024-26952,
   CVE-2024-26980, CVE-2024-27017, CVE-2024-27398, CVE-2024-27399,
   CVE-2024-27401, CVE-2024-35848, CVE-2024-35947, CVE-2024-36016,
   CVE-2024-36017, CVE-2024-36880, CVE-2024-36883, CVE-2024-36886,
   CVE-2024-36889, CVE-2024-36897, CVE-2024-36902, CVE-2024-36904,
   CVE-2024-36905, CVE-2024-36906, CVE-2024-36916, CVE-2024-36919,
   CVE-2024-36928, CVE-2024-36929, CVE-2024-36931, CVE-2024-36933,
   CVE-2024-36934, CVE-2024-36937, CVE-2024-36938, CVE-2024-36939,
   CVE-2024-36940, CVE-2024-36941, CVE-2024-36944, CVE-2024-36946,
   CVE-2024-36947, CVE-2024-36950, CVE-2024-36952, CVE-2024-36953,
   CVE-2024-36954, CVE-2024-36955, CVE-2024-36957, CVE-2024-36959,
   CVE-2024-36960, CVE-2024-36964, CVE-2024-36965, CVE-2024-36967,
   CVE-2024-36969, CVE-2024-36975, CVE-2024-38600

Package Information:
   https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1070.79
   https://launchpad.net/ubuntu/+source/linux-azure-fde/5.15.0-1070.79.1