CVE-2021-32844

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Source

https://cve.org/CVERecord?id=CVE-2021-32844

Import Source

https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-32844.json

JSON Data

https://api.test.osv.dev/v1/vulns/CVE-2021-32844

Published

2023-02-17T23:15:11.887Z

Modified

2026-02-23T01:49:28.140289Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

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.

References

Affected packages

Git / github.com/moby/hyperkit

Affected ranges

Type: GIT
Repo: https://github.com/moby/hyperkit
Events: Introduced

0 Unknown introduced commit / All previous commits are affected

Fixed

451558fe8aaa8b24e02e34106e3bb9fe41d7ad13

Affected versions

v0.*

v0.20170214

v0.20170227

v0.20170425

v0.20170511

v0.20170519

v0.20170904

v0.20171020

v0.20171204

v0.20180123

v0.20180223

v0.20180403

v0.20180621

v0.20190201

v0.20190802

v0.20200224

v0.20200908

v0.20210107

Database specific

vanir_signatures

[
    {
        "signature_version": "v1",
        "target": {
            "function": "vi_pci_write",
            "file": "src/lib/virtio.c"
        },
        "digest": {
            "length": 2931.0,
            "function_hash": "147428864900504555325010098442511855567"
        },
        "source": "https://github.com/moby/hyperkit/commit/451558fe8aaa8b24e02e34106e3bb9fe41d7ad13",
        "signature_type": "Function",
        "id": "CVE-2021-32844-901c6b33",
        "deprecated": false
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "src/lib/virtio.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "27600109711837502342970271220179049041",
                "332855437583339418914141984933401851115",
                "80563983225965591535718958744148807913",
                "141247226162631951124093854780487189898",
                "44554842436581024155871805227358743936"
            ]
        },
        "source": "https://github.com/moby/hyperkit/commit/451558fe8aaa8b24e02e34106e3bb9fe41d7ad13",
        "signature_type": "Line",
        "id": "CVE-2021-32844-954438f6",
        "deprecated": false
    }
]

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-32844.json"