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Ubuntu 22.04: USN-6707-4 Critical: Linux Kernel Azure Issues

ubuntu
Calendar Grey March 28, 2024
Dist Ubuntu Esm H88
Tackling a variety of vulnerabilities in the Linux kernel pertinent to cloud environments, particularly addressing use-after-free bugs impacting Ubuntu 22.04.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure-6.5: Linux kernel for Microsoft Azure cloud 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 corrects flaws in the following subsystems:

- Network drivers;

-...

Read the Full Advisory

Topics%20covered

Topics Covered

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

Update Instructions

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

Ubuntu 22.04 LTS:
   linux-image-6.5.0-1017-azure    6.5.0-1017.17~22.04.1
   linux-image-6.5.0-1017-azure-fde  6.5.0-1017.17~22.04.1
   linux-image-azure               6.5.0.1017.17~22.04.1
   linux-image-azure-fde           6.5.0.1017.17~22.04.1

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-6707-4

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

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

Severity
critical
Lowest
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Critical

Ubuntu Security Notice USN-6707-4

Topics%20covered

Topics Covered

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

Package Information

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