VulnerabilityModified

CVE-2024-32668

An insufficient boundary validation in the USB code could lead to an out-of-bounds write on the heap, with data controlled by the caller.

HIGH 8.2EPSS 0.21%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An insufficient boundary validation in the USB code could lead to an out-of-bounds write on the heap, with data controlled by the caller. A malicious, privileged software running in a guest VM can exploit the vulnerability 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.

CVSS 3.1: 8.2 HIGHCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS: 0.21% probability · 12th percentile
CISA KEV: Not listed
Weakness: CWE-193, CWE-787
Affected: freebsd/freebsd
Source: secteam@freebsd.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.