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Ubuntu 20.04 LTS: Linux Oracle Kernel Critical Flaws Fix USN-7820-1

ubuntu
Calendar Grey October 13, 2025
Dist Ubuntu Esm H88
Ubuntu 20.04 LTS update fixes multiple critical kernel security issues, enhancing system protection and functionality.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-oracle: Linux kernel for Oracle 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:

- Ext4 file system;

- Network file system (NFS) server daemon;

- Packet sockets;

- Network traffic control;

- VMware vSockets driver;

(CVE-2025-37785, CVE-2025-38618, CVE-2025-38617, CVE-2024-57996,

CVE-2025-37752, CVE-2025-38477, CVE-2025-21796, CVE-2025-38350)

Topics%20covered

Topics Covered

security advisory kernel update critical Ubuntu system compromise linux-oracle

Update Instructions

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

Ubuntu 20.04 LTS
  linux-image-5.4.0-1149-oracle   5.4.0-1149.159
                                  Available with Ubuntu Pro
  linux-image-oracle-5.4          5.4.0.1149.143
                                  Available with Ubuntu Pro
  linux-image-oracle-lts-20.04    5.4.0.1149.143
                                  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-7820-1

CVE-2024-57996, CVE-2025-21796, CVE-2025-37752, CVE-2025-37785,

CVE-2025-38350, CVE-2025-38477, CVE-2025-38617, CVE-2025-38618

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7820-1

Topics%20covered

Topics Covered

security advisory kernel update critical Ubuntu system compromise linux-oracle

Package Information

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