Hyper-V Denial of Service Vulnerability

1) Out-of-bounds memory access

EUVDB-ID: #VU6039

Risk: Low

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2017-0097

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker with privileged access to guest operating system to perform a denial of service (DoS) attack.

The vulnerability exists due to out-of-bounds memory access in Microsoft Hyper-V Network Switch. An attacker with privileged access to guest operating system can use a specially crafted application to trigger out-of-bounds memory access and cause the host machine to crash.

Successful exploitation of this vulnerability may result denial of service attack again the host system.

Mitigation

Install updates from Microsoft website.

Vulnerable software versions

Windows: Vista - 10

Windows Server: 2008 - 2016 10.0.14393.10

CPE2.3

• cpe:2.3:o:microsoft:windows:Vista:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:8.1:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2008_R2:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2012_R2:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.10:*:*:*:*:*:*

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0097

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.