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Ubuntu 23.10 & 22.04 LTS USN-6707-3: AWS Kernel Denial of Service

ubuntu
Calendar Grey March 26, 2024
Dist Ubuntu Esm H88
Important patches issued to resolve kernel vulnerabilities in AWS environments. Safeguard your Ubuntu installations with the most recent security enhancements.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

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

- linux-aws-6.5: Linux kernel for Amazon Web Services (AWS) systems

Details:

Lonial Con discovered that the netfilter subsystem in the Linux kernel did

not properly handle element deactivation in certain cases, leading to a

use-after-free vulnerability. A local attacker could use this to cause a

denial of service (system crash) or possibly execute arbitrary code.

(CVE-2024-1085)

Notselwyn discovered that the netfilter subsystem in the Linux kernel did

not properly handle verdict parameters in certain cases, leading to a use-

after-free vulnerability. A local attacker could use this to cause a denial

of service (system crash) or possibly execute arbitrary code.

(CVE-2024-1086)

Several security issues were discovered in the Linux kernel.

An attacker could possibly use these to compromise the system.

This update corre...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service update Ubuntu kernel use-after-free AWS

Update Instructions

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

Ubuntu 23.10:
   linux-image-6.5.0-1016-aws      6.5.0-1016.16
   linux-image-aws                 6.5.0.1016.16

Ubuntu 22.04 LTS:
   linux-image-6.5.0-1016-aws      6.5.0-1016.16~22.04.1
   linux-image-aws                 6.5.0.1016.16~22.04.1

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-6707-3

https://ubuntu.com/security/notices/USN-6707-1

CVE-2024-1085, CVE-2024-1086, CVE-2024-26597, CVE-2024-26599

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6707-3

Topics%20covered

Topics Covered

security advisory denial of service update Ubuntu kernel use-after-free AWS

Package Information

https://launchpad.net/ubuntu/+source/linux-aws/6.5.0-1016.16
https://launchpad.net/ubuntu/+source/linux-aws-6.5/6.5.0-1016.16~22.04.1

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