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CVE-2021-32847

Date: February 19, 2023

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.

Language: C

Severity Score

Related Resources (5)

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
https://nvd.nist.gov/vuln/detail/CVE-2021-32847
https://www.mend.io/vulnerability-database/CVE-2021-32847

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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