CVE-2024-33619

Name: CVE-2024-33619
Creator: NVD / NIST
Published: 2024-06-21T11:15:09.767+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2024-33619 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: efi: libstub: only free priv.runtime_map when allocated priv.runtime_map is only allocated when efi_novamap is not set. Otherwise, it is an uninitialized value. In the error path, it is freed unconditionally. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: efi: libstub: only free priv.runtime_map when allocated priv.runtime_map is only allocated when efi_novamap is not set. Otherwise, it is an uninitialized value. In the error path, it is freed unconditionally. Avoid passing an uninitialized value to free_pool. Free priv.runtime_map only when it was allocated. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.24%

14.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-908

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 6.1, < 6.1.93
Linux	Linux Kernel	>= 6.2, < 6.6.33
Linux	Linux Kernel	>= 6.7, < 6.9.4

References

https://git.kernel.org/stable/c/4b2543f7e1e6b91cfc8dd1696e3cdf01c3ac8974Mailing List, Patch
https://git.kernel.org/stable/c/6ca67a5fe1c606d1fbe24c30a9fc0bdc43a18554Mailing List, Patch
https://git.kernel.org/stable/c/9dce01f386c9ce6990c0a83fa14b1c95330b037eMailing List, Patch
https://git.kernel.org/stable/c/b8938d6f570f010a1dcdbfed3e5b5d3258c2a908Mailing List, Patch
https://git.kernel.org/stable/c/4b2543f7e1e6b91cfc8dd1696e3cdf01c3ac8974Mailing List, Patch
https://git.kernel.org/stable/c/6ca67a5fe1c606d1fbe24c30a9fc0bdc43a18554Mailing List, Patch
https://git.kernel.org/stable/c/9dce01f386c9ce6990c0a83fa14b1c95330b037eMailing List, Patch
https://git.kernel.org/stable/c/b8938d6f570f010a1dcdbfed3e5b5d3258c2a908Mailing List, Patch

Timeline

Published: Jun 21, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-33619?

How severe is CVE-2024-33619?

CVE-2024-33619 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2024-33619?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-33619?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST