Multiple vulnerabilities in Microsoft Hyper-V

Published: 2018-06-12

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-8218 CVE-2018-8219
CWE-ID	CWE-20 CWE-264
Exploitation vector	Local network
Public exploit	N/A
Vulnerable software Subscribe	Windows Operating systems & Components / Operating system Windows Server Operating systems & Components / Operating system
Vendor	Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper input validation

EUVDB-ID: #VU13317

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-8218

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows an adjacent low-privileged attacker to cause DoS condition on the target system.

The vulnerability exists due to an error when virtual machines access the Hyper-V Network Switch. An adjacent attacker can run a specially crafted application that causes a host machine to crash.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10

Windows Server: 2016

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8218

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Privilege escalation

EUVDB-ID: #VU13319