CVE-2021-32847 - Vulnerability Details - OpenCVE

HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior, a malicious guest can trigger a vulnerability in the host by abusing the disk driver that may lead to the disclosure of the host memory into the virtualized guest. This issue is fixed in commit cf60095a4d8c3cb2e182a14415467afd356e982f.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0012.

Exploitation poc

Automatable no

Technical Impact partial

Vendors	Products
Mobyproject Subscribe	Hyperkit Subscribe

Configuration 1 [-]

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

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2021-19579	HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior, a malicious guest can trigger a vulnerability in the host by abusing the disk driver that may lead to the disclosure of the host memory into the virtualized guest. This issue is fixed in commit cf60095a4d8c3cb2e182a14415467afd356e982f.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/moby/hyperkit/blob/2f061e447e1435cdf1b9eda364cea6414f2c606b/src/lib/pci_virtio_block.c#L316
https://github.com/moby/hyperkit/commit/cf60095a4d8c3cb2e182a14415467afd356e982f
https://securitylab.github.com/advisories/GHSL-2021-058-moby-hyperkit/

History

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

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-02-20T00:00:00.000Z

Updated: 2025-03-10T21:09:34.018Z

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

Link: CVE-2021-32847

Vulnrichment

Updated: 2024-08-03T23:33:55.922Z

NVD

Status : Modified

Published: 2023-02-20T17:15:11.857

Modified: 2024-11-21T06:07:52.487

Link: CVE-2021-32847

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-125

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