Vulnerability Details CVE-2021-32843
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 5.6%
CVSS Severity
CVSS v3 Score 6.2
References
- 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/
- 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/
Products affected by CVE-2021-32843
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cpe:2.3:a:mobyproject:hyperkit:-
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cpe:2.3:a:mobyproject:hyperkit:0.20170214
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cpe:2.3:a:mobyproject:hyperkit:0.20170227
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cpe:2.3:a:mobyproject:hyperkit:0.20170425
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cpe:2.3:a:mobyproject:hyperkit:0.20170511
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cpe:2.3:a:mobyproject:hyperkit:0.20170519
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cpe:2.3:a:mobyproject:hyperkit:0.20170904
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cpe:2.3:a:mobyproject:hyperkit:0.20171020
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cpe:2.3:a:mobyproject:hyperkit:0.20171204
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cpe:2.3:a:mobyproject:hyperkit:0.20180123
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cpe:2.3:a:mobyproject:hyperkit:0.20180223
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cpe:2.3:a:mobyproject:hyperkit:0.20180403
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cpe:2.3:a:mobyproject:hyperkit:0.20180621
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cpe:2.3:a:mobyproject:hyperkit:0.20190201
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cpe:2.3:a:mobyproject:hyperkit:0.20190802
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cpe:2.3:a:mobyproject:hyperkit:0.20200224
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cpe:2.3:a:mobyproject:hyperkit:0.20200908
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cpe:2.3:a:mobyproject:hyperkit:0.20210107