CVEvulnerability
CVE-2020-24718
8.2 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-09-25
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.2 HIGH — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-862
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.
Affected configurations
• freebsd freebsd (<= 11.2)
• freebsd freebsd 11.3
• freebsd freebsd 11.4
• freebsd freebsd 12.0
• freebsd freebsd 12.1
• omniosce omnios (<= r151034)
• openindiana openindiana (<= hipster 2020.04)
• netapp clustered data ontap
Related
Weakness · CWE (1)
- CWE-862 Missing Authorization weakness
References
- https://github.com/illumos/illumos-gate/blob/84971882a96ac0fecd538b02208054a872ff8af3/usr/src/uts/i86pc/io/vmm/intel/vmcs.c#L246-L249 Exploit, Third Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-20:28.bhyve_vmcs.asc Vendor Advisory
- https://security.netapp.com/advisory/ntap-20201016-0002/ Third Party Advisory
- https://github.com/illumos/illumos-gate/blob/84971882a96ac0fecd538b02208054a872ff8af3/usr/src/uts/i86pc/io/vmm/intel/vmcs.c#L246-L249 Exploit, Third Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-20:28.bhyve_vmcs.asc Vendor Advisory
- https://security.netapp.com/advisory/ntap-20201016-0002/ Third Party Advisory