#VU6265 Improper input validation in Windows Server and Windows - CVE-2017-0185

Vulnerability identifier: #VU6265

Vulnerability risk: Medium

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-0185

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

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

Vendor: Microsoft

Description
The vulnerability allows a remote authenticated attacker to cause DoS conditions.

The vulnerability exists due to improper input validation by Windows Hyper-V Network Switch on a host server. A remote authenticated attacker can run a specially crafted application on a guest operating system and cause a host machine to crash.

Successful exploitation of this vulnerability may result in denial of service.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Windows Server: 2012 R2 - 2012, 2016 10.0.14393.10

Windows: 8.1, 10

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0185

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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.