CVE-2021-32843 - Vulnerability Details - OpenCVE

Description

HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior of HyperKit, `virtio.c` has is a call to `vc_cfgread` 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 df0e46c7dbfd81a957d85e449ba41b52f6f7beb4.

Published: 2023-02-17

Score: 6.2 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

moby

hyperkit

affected

Version	Status	Constraints
`0.20210107`	affected	≤ 0.20210107

Configuration 1 [-]

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

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-19575	HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior of HyperKit, `virtio.c` has is a call to `vc_cfgread` 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 df0e46c7dbfd81a957d85e449ba41b52f6f7beb4.

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 0.00062.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/moby/hyperkit/commit/df0e46c7dbfd81a957d85e449ba41b52f6f7beb4
https://github.com/moby/hyperkit/pull/313
https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit/

History

No history.

Subscriptions

Mobyproject Hyperkit

MITRE

Status: PUBLISHED

Assigner: GitHub_M

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

Updated: 2025-03-10T21:10:07.604Z

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

Link: CVE-2021-32843

Vulnrichment

No data.

NVD

Status : Modified

Published: 2023-02-17T23:15:11.803

Modified: 2024-11-21T06:07:51.983

Link: CVE-2021-32843

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-476

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