CVE-2023-46840

VT-d: Failure to quarantine devices in !HVM builds

Description

Incorrect placement of a preprocessor directive in source code results in logic that doesn't operate as intended when support for HVM guests is compiled out of Xen.

Remediation

Workaround:

There is no mitigation.

4.1

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.02%

Affected: Xen Xen

References

Link	Tags
https://xenbits.xenproject.org/xsa/advisory-450.html

Frequently Asked Questions

What is the severity of CVE-2023-46840?: CVE-2023-46840 has been scored as a medium severity vulnerability.
How to fix CVE-2023-46840?: As a workaround for remediating CVE-2023-46840: There is no mitigation.
Is CVE-2023-46840 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-46840 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-2023-46840?: CVE-2023-46840 affects Xen Xen.

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