Vulnerability identifier: #VU66475
Vulnerability risk: Medium
CVSSv3.1: 8.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
FreeBSD
Operating systems & Components /
Operating system
Vendor: FreeBSD Foundation
Description
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in lib9p implementation used by bhyve(8). A remote user on the guest OS can send a specially crafted message to trigger memory corruption and execute arbitrary code on the host OS.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
FreeBSD: 13.0 - 13.1
External links
http://www.freebsd.org/security/advisories/FreeBSD-SA-22:12.lib9p.asc
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.