#VU17999 Input validation error in Windows and Windows Server - CVE-2019-0701

Vulnerability identifier: #VU17999

Vulnerability risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-0701

CWE-ID: CWE-20

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when Microsoft Hyper-V on a host server does not properly validate input from a privileged user on a guest operating system.

Successful exploitation of the vulnerability may result denial of service (DoS) attack against the host system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Windows: 10 1803 10.0.17134.48, 10 1809 10.0.17763.1

Windows Server: 2019 10.0.17763.1 - 2019 1803

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0701

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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.