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CVE-2024-2312

6.7 · MEDIUM

GRUB2 does not call the module fini functions on exit, leading to Debian/Ubuntu's peimage GRUB2 module leaving UEFI system table hooks after exit.

Published Apr 5, 2024CWE-416EPSS 0.38%

Overview

CVE-2024-2312 is a medium-severity vulnerability. It was published on April 5, 2024 and has a CVSS 3.1 base score of 6.7 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

GRUB2 does not call the module fini functions on exit, leading to Debian/Ubuntu's peimage GRUB2 module leaving UEFI system table hooks after exit. This lead to a use-after-free condition, and could possibly lead to secure boot bypass.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refbugs.launchpad.net/ubuntu/+source/grub2-unsigned/+bug/2054127Refcve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-2312Refsecurity.netapp.com/advisory/ntap-20240426-0003/Refbugs.launchpad.net/ubuntu/+source/grub2-unsigned/+bug/2054127Refcve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-2312Refsecurity.netapp.com/advisory/ntap-20240426-0003/

How CyberStrike helps

Frequently asked questions

What is CVE-2024-2312?

CVE-2024-2312 is a medium-severity vulnerability. It was published on April 5, 2024 and has a CVSS 3.1 base score of 6.7 (MEDIUM).

How severe is CVE-2024-2312?

This vulnerability has a CVSS 3.1 base score of 6.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-2312?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-2312?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-2312 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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