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Ubuntu 18.04 LTS USN-6973-3 Moderate: Linux Kernel Attack Fixes

ubuntu
Calendar Grey August 26, 2024
Dist Ubuntu Esm H88
The Ubuntu Security Notice USN-6974-2 addresses several vulnerabilities related to the Linux kernel and outlines their corresponding patches for various cloud environments.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems

Details:

It was discovered that a race condition existed in the Bluetooth subsystem

in the Linux kernel, leading to a null pointer dereference vulnerability. A

privileged local attacker could use this to possibly cause a denial of

service (system crash). (CVE-2024-24860)

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:

- SuperH RISC architecture;

- MMC subsystem;

- Network drivers;

- SCSI drivers;

- GFS2 file system;

- IPv4 networking;

- IPv6 networking;

- HD-audio driver;

(CVE-2024-26830, CVE-2024-39484, CVE-2024-36901, CVE-2024-26929,

CVE-2024-26921, CVE-2021-46926, CVE-2023-52629, CVE-2023-52760)

Topics%20covered

Topics Covered

security advisory denial of service ubuntu system crash linux kernel aws attack fixes

Update Instructions

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

Ubuntu 18.04 LTS
   linux-image-5.4.0-1131-aws      5.4.0-1131.141~18.04.1
                                   Available with Ubuntu Pro
   linux-image-aws                 5.4.0.1131.141~18.04.1
                                   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-6973-3

https://ubuntu.com/security/notices/USN-6973-2

https://ubuntu.com/security/notices/USN-6973-1

CVE-2021-46926, CVE-2023-52629, CVE-2023-52760, CVE-2024-24860,

CVE-2024-26830, CVE-2024-26921, CVE-2024-26929, CVE-2024-36901,

CVE-2024-39484

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6973-3

Topics%20covered

Topics Covered

security advisory denial of service ubuntu system crash linux kernel aws attack fixes

Package Information

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