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CVE-2021-32847

HIGH
Published 2023-02-20T00:00:00.000Z
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CVSS Score

V3.1
7.1
/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.295
Higher than 29.5% of all CVEs

Attack Vector Metrics

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Description

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

moby

hyperkit

Affected Versions:

0.20210107

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-gpgx-6j76-jh6m

Advisory Details

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.

CVSS Scoring

CVSS Score

5.0

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-32847
WEB https://github.com/moby/hyperkit/commit/cf60095a4d8c3cb2e182a14415467afd356e982f
WEB https://github.com/moby/hyperkit/blob/2f061e447e1435cdf1b9eda364cea6414f2c606b/src/lib/pci_virtio_block.c#L316
ADVISORY https://securitylab.github.com/advisories/GHSL-2021-058-moby-hyperkit

Advisory provided by GitHub Security Advisory Database. Published: February 20, 2023, Modified: March 1, 2023

References

https://securitylab.github.com/advisories/GHSL-2021-058-moby-hyperkit/
https://github.com/moby/hyperkit/blob/2f061e447e1435cdf1b9eda364cea6414f2c606b/src/lib/pci_virtio_block.c#L316
https://github.com/moby/hyperkit/commit/cf60095a4d8c3cb2e182a14415467afd356e982f
Published: 2023-02-20T00:00:00.000Z
Last Modified: 2025-03-10T21:09:34.018Z
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