Information disclosure in Microsoft Hyper-V

Published: 2019-10-08 | Updated: 2019-10-08
Severity Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2019-1230
CWE ID CWE-125
Exploitation vector Local network
Public exploit N/A
Vulnerable software Windows Subscribe
Windows Server
Vendor Microsoft

Security Advisory

This security advisory describes one low risk vulnerability.

1) Out-of-bounds read

Severity: Low

CVSSv3: 3.6 [CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1230

CWE-ID: CWE-125 - Out-of-bounds Read

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when the Windows Hyper-V Network Switch on a host operating system fails to properly validate input from an authenticated user on a guest operating system. A remote authenticated user on a guest operating system can run a specially crafted application that could cause the Hyper-V host operating system to disclose memory information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1703, 10 1709, 10 1803, 10 1809

Windows Server: 1803, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1230

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.