CVE-2021-32844 - Vulnerability Details - OpenCVE

HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior of HyperKit, ` vi_pci_write` has is a call to `vc_cfgwrite` that does not check for null which when called makes the host crash. This issue may lead to a guest crashing the host causing a denial of service. This issue is fixed in commit 451558fe8aaa8b24e02e34106e3bb9fe41d7ad13.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00026.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Mobyproject	Hyperkit

Configuration 1 [-]

cpe:2.3:a:mobyproject:hyperkit:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2021-19576	HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior of HyperKit, ` vi_pci_write` has is a call to `vc_cfgwrite` that does not check for null which when called makes the host crash. This issue may lead to a guest crashing the host causing a denial of service. This issue is fixed in commit 451558fe8aaa8b24e02e34106e3bb9fe41d7ad13.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/moby/hyperkit/commit/451558fe8aaa8b24e02e34106e3bb9fe41d7ad13
https://github.com/moby/hyperkit/pull/313
https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit/

History

Mon, 10 Mar 2025 21:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-02-17T00:00:00.000Z

Updated: 2025-03-10T21:10:00.269Z

Reserved: 2021-05-12T00:00:00.000Z

Link: CVE-2021-32844

Vulnrichment

Updated: 2024-08-03T23:33:55.842Z

NVD

Status : Modified

Published: 2023-02-17T23:15:11.887

Modified: 2024-11-21T06:07:52.110

Link: CVE-2021-32844

Redhat

No data.

OpenCVE Enrichment

No data.

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