Vulnerability identifier: #VU61911
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/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 attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the e1000 network adapter implementation in bhyve(8) hypervisor. A remote attacker with access to the guest OS can send specially crafted traffic via the affected adapter, trigger memory corruption and execute arbitrary code on the hypervisor.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
FreeBSD: 12.0 - 13.1
External links
http://www.freebsd.org/security/advisories/FreeBSD-SA-22:05.bhyve.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.