Information disclosure in Microsoft Hyper-V

Published: 2018-04-10

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-0957 CVE-2018-0964
CWE-ID	CWE-20
Exploitation vector	Local
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: #VU11746

Risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0957

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a quest user to gain access to potentially sensitive information.

The vulnerability exists due to an input validation error in Windows Hyper-V. An authenticated user of guest operating system can obtain memory information from host system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 8.1 - 10

Windows Server: 2012 R2 - 2016

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0957

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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

2) Improper input validation

EUVDB-ID: #VU11748