Buffer overflow in Freebsd

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. 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.

EPSS: 0.002 (11.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

  • Freebsd — versions 13.3, 13.4, 14.0

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-32668?
CVE-2024-32668 is a high-severity vulnerability in Freebsd, classified under Off-by-one Error. CVSS score: 8.2/10. Published 2024-09-05.
How severe is CVE-2024-32668?
High severity. CVSS v3 base score is 8.2 out of 10.
Is CVE-2024-32668 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.