CVE-2020-24718

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...

Code injection

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...

CVE-2020-24718

CVE-2020-24718 affects bhyve in FreeBSD (through 12.x) and related illumos variants (e.g., OmniOS CE, OpenIndiana). The issue is insufficient access controls on Intel VMCS/VMCB structures, allowing a root user in a container (host or jailed bhyve instance) to modify VMCS_HOST_RIP and escalate to ...

CVE-2020-24718

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...

FreeBSD : FreeBSD -- bhyve privilege escalation via VMCS access (2c5b9cd7-f7e6-11ea-88f8-901b0ef719ab)

AMD and Intel CPUs support hardware virtualization using specialized data structures that control various aspects of guest operation. These are the Virtual Machine Control Structure VMCS on Intel CPUs, and the Virtual Machine Control Block VMCB on AMD CPUs. Insufficient access controls allow root...

Low: Red Hat Security Advisory: kvm security and bug fix update

Updated kvm packages that fix one security issue and three bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having low security impact. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, ...