[USN-7173-2] Linux kernel vulnerabilities

[Rodrigo Figueiredo Zaiden]

==========================================================================
Ubuntu Security Notice USN-7173-2
December 20, 2024

linux-aws, linux-aws-5.4, linux-bluefield, linux-ibm, linux-ibm-5.4,
linux-oracle, linux-oracle-5.4, linux-xilinx-zynqmp vulnerabilities
==========================================================================

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-aws: Linux kernel for Amazon Web Services (AWS) systems
- linux-bluefield: Linux kernel for NVIDIA BlueField platforms
- linux-ibm: Linux kernel for IBM cloud systems
- linux-oracle: Linux kernel for Oracle Cloud systems
- linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors
- linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems
- linux-ibm-5.4: Linux kernel for IBM cloud systems
- linux-oracle-5.4: Linux kernel for Oracle 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:
   - GPU drivers;
   - Network drivers;
   - SCSI subsystem;
   - Ext4 file system;
   - Bluetooth subsystem;
   - Memory management;
   - Amateur Radio drivers;
   - Network traffic control;
   - Sun RPC protocol;
   - VMware vSockets driver;
(CVE-2023-52821, CVE-2024-40910, CVE-2024-43892, CVE-2024-49967,
CVE-2024-50264, CVE-2024-36952, CVE-2024-38553, CVE-2021-47101,
CVE-2021-47001, CVE-2024-35965, CVE-2024-35963, CVE-2024-35966,
CVE-2024-35967, CVE-2024-53057, CVE-2024-38597)

Update instructions:

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

Ubuntu 20.04 LTS
   linux-image-5.4.0-1056-xilinx-zynqmp  5.4.0-1056.60
   linux-image-5.4.0-1084-ibm      5.4.0-1084.89
   linux-image-5.4.0-1097-bluefield  5.4.0-1097.104
   linux-image-5.4.0-1136-oracle   5.4.0-1136.145
   linux-image-5.4.0-1137-aws      5.4.0-1137.147
   linux-image-aws-lts-20.04       5.4.0.1137.134
   linux-image-bluefield           5.4.0.1097.93
   linux-image-ibm-lts-20.04       5.4.0.1084.113
   linux-image-oracle-lts-20.04    5.4.0.1136.129
   linux-image-xilinx-zynqmp       5.4.0.1056.56

Ubuntu 18.04 LTS
   linux-image-5.4.0-1084-ibm      5.4.0-1084.89~18.04.1
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1136-oracle   5.4.0-1136.145~18.04.1
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1137-aws      5.4.0-1137.147~18.04.1
                                   Available with Ubuntu Pro
   linux-image-aws                 5.4.0.1137.147~18.04.1
                                   Available with Ubuntu Pro
   linux-image-ibm                 5.4.0.1084.89~18.04.1
                                   Available with Ubuntu Pro
   linux-image-oracle              5.4.0.1136.145~18.04.1
                                   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-7173-2
   https://ubuntu.com/security/notices/USN-7173-1
   CVE-2021-47001, CVE-2021-47101, CVE-2022-38096, CVE-2023-52821,
   CVE-2024-35963, CVE-2024-35965, CVE-2024-35966, CVE-2024-35967,
   CVE-2024-36952, CVE-2024-38553, CVE-2024-38597, CVE-2024-40910,
   CVE-2024-43892, CVE-2024-49967, CVE-2024-50264, CVE-2024-53057

Package Information:
   https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1137.147
   https://launchpad.net/ubuntu/+source/linux-bluefield/5.4.0-1097.104
   https://launchpad.net/ubuntu/+source/linux-ibm/5.4.0-1084.89
   https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1136.145
   https://launchpad.net/ubuntu/+source/linux-xilinx-zynqmp/5.4.0-1056.60

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