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From: Rodrigo Figueiredo Zaiden <rodrigo.zaiden@canonical.com>
Reply-To: "Security@Ubuntu.com" <Security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <b5eb7bda-465f-440d-aa7e-40d740f6bcfe@canonical.com>
Subject: [USN-7195-1] Linux kernel (Azure) vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-7195-1
January 09, 2025

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

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

- 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

Details:

Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)

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;
   - S390 architecture;
   - x86 architecture;
   - Power management core;
   - GPU drivers;
   - InfiniBand drivers;
   - Network drivers;
   - S/390 drivers;
   - SCSI subsystem;
   - TTY drivers;
   - BTRFS file system;
   - Ext4 file system;
   - EROFS file system;
   - F2FS file system;
   - File systems infrastructure;
   - BPF subsystem;
   - Socket messages infrastructure;
   - Bluetooth subsystem;
   - Memory management;
   - Amateur Radio drivers;
   - Ethernet bridge;
   - Networking core;
   - IPv4 networking;
   - Network traffic control;
   - Sun RPC protocol;
   - VMware vSockets driver;
   - SELinux security module;
(CVE-2024-42240, CVE-2024-36938, CVE-2024-35967, CVE-2024-36953,
CVE-2022-48938, CVE-2024-38553, CVE-2024-35904, CVE-2024-35965,
CVE-2024-26947, CVE-2024-36968, CVE-2024-43892, CVE-2024-38597,
CVE-2023-52498, CVE-2021-47501, CVE-2024-44942, CVE-2024-42077,
CVE-2024-53057, CVE-2024-46724, CVE-2024-35963, CVE-2022-48943,
CVE-2024-42068, CVE-2024-42156, CVE-2022-48733, CVE-2023-52639,
CVE-2021-47101, CVE-2023-52821, CVE-2024-44940, CVE-2024-36952,
CVE-2021-47001, CVE-2024-38538, CVE-2024-40910, CVE-2021-47076,
CVE-2024-35966, CVE-2024-50264, CVE-2024-35951, CVE-2023-52488,
CVE-2023-52497, CVE-2024-49967)

Update instructions:

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

Ubuntu 20.04 LTS
   linux-image-5.4.0-1142-azure    5.4.0-1142.149
   linux-image-azure-lts-20.04     5.4.0.1142.136

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-7195-1
   CVE-2021-47001, CVE-2021-47076, CVE-2021-47101, CVE-2021-47501,
   CVE-2022-38096, CVE-2022-48733, CVE-2022-48938, CVE-2022-48943,
   CVE-2023-52488, CVE-2023-52497, CVE-2023-52498, CVE-2023-52639,
   CVE-2023-52821, CVE-2024-26947, CVE-2024-35904, CVE-2024-35951,
   CVE-2024-35963, CVE-2024-35965, CVE-2024-35966, CVE-2024-35967,
   CVE-2024-36938, CVE-2024-36952, CVE-2024-36953, CVE-2024-36968,
   CVE-2024-38538, CVE-2024-38553, CVE-2024-38597, CVE-2024-40910,
   CVE-2024-42068, CVE-2024-42077, CVE-2024-42156, CVE-2024-42240,
   CVE-2024-43892, CVE-2024-44940, CVE-2024-44942, CVE-2024-46724,
   CVE-2024-49967, CVE-2024-50264, CVE-2024-53057

Package Information:
   https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1142.149

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