CVE-2021-32844

Summary

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.

Affected Software

Weaknesses

• CWE-476: CWE-476 NULL Pointer Dereference

ADP Enrichment

CVE Program Container

Additional References

• https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit/
• https://github.com/moby/hyperkit/pull/313
• https://github.com/moby/hyperkit/commit/451558fe8aaa8b24e02e34106e3bb9fe41d7ad13

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit/
• https://github.com/moby/hyperkit/pull/313
• https://github.com/moby/hyperkit/commit/451558fe8aaa8b24e02e34106e3bb9fe41d7ad13

• ←Previous
• Next→