#VU46742 Security restrictions bypass in FreeBSD - CVE-2020-24718
Published: September 16, 2020
Vulnerability identifier: #VU46742
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-24718
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
FreeBSD
FreeBSD
Software vendor:
FreeBSD Foundation
FreeBSD Foundation
Description
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists in bhyve(8) hypervisor due to application does not properly impose security restrictions. A remote root user on the host within jailed environment can run a specially crafted program to execute arbitrary code on systems that rely on bhyve(8) in jail for security domain separation.
Remediation
Install updates from vendor's website.