PT-2018-3339 · Freebsd · Freebsd+1

Reno Robert · Published 2018-12-04 · Updated 2020-08-24 · CVE-2018-17160

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: FreeBSD versions prior to 11.2-STABLE(r341486) FreeBSD versions prior to 11.2-RELEASE-p6

Description: The issue is caused by insufficient bounds checking in one of the device models provided by bhyve, allowing a guest operating system to overwrite memory in the bhyve host, which may permit 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.

Recommendations: For versions prior to 11.2-STABLE(r341486), update to 11.2-STABLE(r341486) or later. For versions prior to 11.2-RELEASE-p6, update to 11.2-RELEASE-p6 or later. As a temporary workaround, consider restricting access to the bhyve device models to minimize the risk of exploitation.

Fix

Memory Corruption

RCE

Weakness Enumeration

CWE-787

CWE-20

Related Identifiers

BDU:2020-00064

CVE-2018-17160

FREEBSD-SA-18_14

Affected Products

Freebsd

Bhyve

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2018-17160 · Security Note
• https://security.freebsd.org/advisories/FreeBSD-SA-18:14.bhyve.asc · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-00064 · Security Note
• https://osv.dev/vulnerability/CVE-2018-17160 · Vendor Advisory
• https://cxsecurity.com/cveshow/CVE-2018-17160 · Note
• http://securityfocus.com/bid/106210 · Note