CVE-2024-33619

efi: libstub: only free priv.runtime_map when allocated

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.05%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/b8938d6f570f010a1dcdbfed3e5b5d3258c2a908 patch mailing list
https://git.kernel.org/stable/c/9dce01f386c9ce6990c0a83fa14b1c95330b037e patch mailing list
https://git.kernel.org/stable/c/6ca67a5fe1c606d1fbe24c30a9fc0bdc43a18554 patch mailing list
https://git.kernel.org/stable/c/4b2543f7e1e6b91cfc8dd1696e3cdf01c3ac8974 patch mailing list

Frequently Asked Questions

What is the severity of CVE-2024-33619?
CVE-2024-33619 has been scored as a medium severity vulnerability.
How to fix CVE-2024-33619?
To fix CVE-2024-33619, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-33619 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-33619 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-33619?
CVE-2024-33619 affects Linux Linux, Linux Linux.
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