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Ubuntu 20.04 LTS USN-7159-4: Critical IoT kernel security updates

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Calendar Grey December 20, 2024
Scroller Ubuntu
Ubuntu Security Notice USN-7159-5 unveils a series of new updates for the Linux kernel tailored for IoT gadgets, enhancing protection protocols.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-iot: Linux kernel for IoT platforms

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:

- ARM32 architecture;

- ARM64 architecture;

- S390 architecture;

- x86 architecture;

- Power management core;

- GPU drivers;

- InfiniBand drivers;

- Network drivers;

- S/390 drivers;

- TTY drivers;

- BTRFS file system;

- EROFS file system;

- F2FS file system;

- File systems infrastructure;

- BPF subsystem;

- Socket messages infrastructure;

- Bluetooth subsystem;

- Ethernet bridge;

- Networking core;

- IPv4 networking;

- SELinux security module;

(CVE-2022-48938, CVE-2024-42156, CVE-2024-36953, CVE-2024-38538,

CVE-2021-47501, CVE-2024-42068, CVE-2024-26947, CVE-2024-46724,

CVE-202...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory security issue kernel system update ubuntu arm architecture linux-iot

Update Instructions

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

Ubuntu 20.04 LTS
   linux-image-5.4.0-1045-iot      5.4.0-1045.46

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-7159-4

https://ubuntu.com/security/notices/USN-7159-3

https://ubuntu.com/security/notices/USN-7159-2

https://ubuntu.com/security/notices/USN-7159-1

CVE-2021-47076, CVE-2021-47501, CVE-2022-48733, CVE-2022-48938,

CVE-2022-48943, CVE-2023-52488, CVE-2023-52497, CVE-2023-52498,

CVE-2023-52639, CVE-2024-26947, CVE-2024-35904, CVE-2024-35951,

CVE-2024-36938, CVE-2024-36953, CVE-2024-36968, CVE-2024-38538,

CVE-2024-42068, CVE-2024-42077, CVE-2024-42156, CVE-2024-42240,

CVE-2024-44940, CVE-2024-44942, CVE-2024-46724

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7159-4

Topics%20covered

Topics Covered

security advisory security issue kernel system update ubuntu arm architecture linux-iot

Package Information

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