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Ubuntu 18.04/16.04 LTS - USN-6777-1 Urgent Kernel DoS Security Advisory

ubuntu
Calendar Grey May 16, 2024
Dist Ubuntu Esm H88
Essential enhancements in the Linux kernel for various Ubuntu versions. Make sure your devices are protected from vulnerabilities.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux: Linux kernel

- linux-aws: Linux kernel for Amazon Web Services (AWS) systems

- linux-azure-4.15: Linux kernel for Microsoft Azure Cloud systems

- linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems

- linux-kvm: Linux kernel for cloud environments

- linux-oracle: Linux kernel for Oracle Cloud systems

- linux-hwe: Linux hardware enablement (HWE) kernel

Details:

Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux

kernel contained a race condition during device removal, leading to a use-

after-free vulnerability. A physically proximate attacker could possibly

use this to cause a denial of service (system crash). (CVE-2023-47233)

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:

- Block layer subsystem;

...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory Ubuntu kernel system update Denial of Service security issues software description

Update Instructions

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

Ubuntu 18.04 LTS
   linux-image-4.15.0-1131-oracle  4.15.0-1131.142
                                   Available with Ubuntu Pro
   linux-image-4.15.0-1152-kvm     4.15.0-1152.157
                                   Available with Ubuntu Pro
   linux-image-4.15.0-1162-gcp     4.15.0-1162.179
                                   Available with Ubuntu Pro
   linux-image-4.15.0-1168-aws     4.15.0-1168.181
                                   Available with Ubuntu Pro
   linux-image-4.15.0-1177-azure   4.15.0-1177.192
                                   Available with Ubuntu Pro
   linux-image-4.15.0-225-generic  4.15.0-225.237
                                   Available with Ubuntu Pro
   linux-image-4.15.0-225-lowlatency  4.15.0-225.237
                                   Available with Ubuntu Pro
   linux-image-aws-lts-18.04       4.15.0.1168.166
                                   Available with Ubuntu Pro
   linux-image-azure-lts-18.04     4.15.0.1177.145
                                   Available with Ubuntu Pro
   linux-image-gcp-lts-18.04       4.15.0.1162.175
                                   Available with Ubuntu Pro
   linux-image-generic             4.15.0.225.209
                                   Available with Ubuntu Pro
   linux-image-kvm                 4.15.0.1152.143
                                   Available with Ubuntu Pro
   linux-image-lowlatency          4.15.0.225.209
                                   Available with Ubuntu Pro
   linux-image-oracle-lts-18.04    4.15.0.1131.136
                                   Available with Ubuntu Pro
   linux-image-virtual             4.15.0.225.209
                                   Available with Ubuntu Pro

Ubuntu 16.04 LTS
   linux-image-4.15.0-1131-oracle  4.15.0-1131.142~16.04.1
                                   Available with Ubuntu Pro
   linux-image-4.15.0-225-generic  4.15.0-225.237~16.04.1
                                   Available with Ubuntu Pro
   linux-image-4.15.0-225-lowlatency  4.15.0-225.237~16.04.1
                                   Available with Ubuntu Pro
   linux-image-generic-hwe-16.04   4.15.0.225.237~16.04.1
                                   Available with Ubuntu Pro
   linux-image-lowlatency-hwe-16.04  4.15.0.225.237~16.04.1
                                   Available with Ubuntu Pro
   linux-image-oem                 4.15.0.225.237~16.04.1
                                   Available with Ubuntu Pro
   linux-image-oracle              4.15.0.1131.142~16.04.1
                                   Available with Ubuntu Pro
   linux-image-virtual-hwe-16.04   4.15.0.225.237~16.04.1
                                   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-6777-1

CVE-2021-46981, CVE-2023-47233, CVE-2023-52439, CVE-2023-52524,

CVE-2023-52530, CVE-2023-52566, CVE-2023-52583, CVE-2023-52601,

CVE-2023-52602, CVE-2023-52604, CVE-2024-26614, CVE-2024-26622,

CVE-2024-26635, CVE-2024-26704, CVE-2024-26735, CVE-2024-26801,

CVE-2024-26805

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6777-1

Topics%20covered

Topics Covered

security advisory Ubuntu kernel system update Denial of Service security issues software description

Package Information

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