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CVE-2020-24718

Published: Sep 25, 2020

Modified: Aug 4, 2024

PUBLISHED

Description

bhyve, as used in FreeBSD through 12.1 and illumos (e.g., OmniOS CE through r151034 and OpenIndiana through Hipster 2020.04), does not properly restrict VMCS and VMCB read/write operations, as demonstrated by a root user in a container on an Intel system, who can gain privileges by modifying VMCS_HOST_RIP.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://github.com/illumos/illumos-gate/blob/84971882a96ac0fecd538b02208054a872ff8af3/usr/src/uts/i86pc/io/vmm/intel/vmcs.c#L246-L249

x_refsource_MISC

https://security.FreeBSD.org/advisories/FreeBSD-SA-20:28.bhyve_vmcs.asc

x_refsource_CONFIRM

https://security.netapp.com/advisory/ntap-20201016-0002/

x_refsource_CONFIRM

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