What is CVE-2018-17160?

CVE-2018-17160 is a critical-severity vulnerability in Freebsd, classified under Out-of-bounds Write. CVSS score: 10.0/10. Published 2018-12-04.

How severe is CVE-2018-17160?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Buffer overflow in Freebsd

CVE-2018-17160

In FreeBSD before 11.2-STABLE(r341486) and 11.2-RELEASE-p6, insufficient bounds checking in one of the device models provided by bhyve can permit a guest operating system to overwrite memory in the bhyve host possibly permitting arbitrary code execution. A guest OS using a firmware image can cause the bhyve process to crash, or possibly execute arbitrary code on the host as root.

Vulnerability class: Buffer Overflow

EPSS: 0.033 (87.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Freebsd — versions FreeBSD 11.2 before 11.2-RELEASE-p6, 11.2

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

secteam@freebsd.org (x_refsource_FREEBSD, vendor-advisory, Patch, Mitigation, Vendor Advisory)
secteam@freebsd.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2018-17160?: CVE-2018-17160 is a critical-severity vulnerability in Freebsd, classified under Out-of-bounds Write. CVSS score: 10.0/10. Published 2018-12-04.
How severe is CVE-2018-17160?: Critical severity. CVSS v3 base score is 10.0 out of 10.