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.

CVSS v3 6.2 MEDIUM

6.2^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/moby/hyperkit/commit/df0e46c7dbfd81a957d85e449ba41b52f6f7beb4	Patch
https://github.com/moby/hyperkit/pull/313	Patch
https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit/	Third Party Advisory
https://github.com/moby/hyperkit/commit/df0e46c7dbfd81a957d85e449ba41b52f6f7beb4	Patch
https://github.com/moby/hyperkit/pull/313	Patch
https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit/	Third Party Advisory

Configurations

Configuration 1 (hide)

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

History

21 Nov 2024, 06:07

Type	Values Removed	Values Added
References	~~() https://github.com/moby/hyperkit/commit/df0e46c7dbfd81a957d85e449ba41b52f6f7beb4 - Patch~~	() https://github.com/moby/hyperkit/commit/df0e46c7dbfd81a957d85e449ba41b52f6f7beb4 - Patch
References	~~() https://github.com/moby/hyperkit/pull/313 - Patch~~	() https://github.com/moby/hyperkit/pull/313 - Patch
References	~~() https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit/ - Third Party Advisory~~	() https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit/ - Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~5.5~~	v2 : unknown v3 : 6.2

Information

Published : 2023-02-17 23:15

Updated : 2024-11-21 06:07

NVD link : CVE-2021-32843

Mitre link : CVE-2021-32843

CVE.ORG link : CVE-2021-32843

JSON object : View

Products Affected

mobyproject

hyperkit

CWE

CWE-476

NULL Pointer Dereference

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