CVE-2021-32843 Information

Description

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.

Reference

https://github.com/moby/hyperkit/pull/313 https://github.com/moby/hyperkit/commit/df0e46c7dbfd81a957d85e449ba41b52f6f7beb4 https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit/