CVE-2024-41928

bhyve(8) privileged guest escape via TPM device passthrough

State: Published
Severity: 8.4 High
Published: Sep 5, 2024
Updated: Sep 20, 2024
Reserved: Aug 27, 2024

Description

Malicious software running in a guest VM can exploit the buffer overflow to achieve code execution on the host in the bhyve userspace process, which typically runs as root. Note that bhyve runs in a Capsicum sandbox, so malicious code is constrained by the capabilities available to the bhyve process.

Scores

CVSS	Score	Vector	Source
3.1	8.4 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-125 Out-of-bounds Read
CWE-787 Out-of-bounds Write
CWE-1285 Improper Validation of Specified Index, Position, or Offset in Input

Affected Products

Product	Versions
FreeBSDFreeBSD	14.1-RELEASE to before p4Affected 14.0-RELEASE to before p10Affected

References

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