#VU15870 Buffer overflow in Windows and Windows Server - CVE-2018-8471

Vulnerability identifier: #VU15870

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-8471

CWE-ID: CWE-119

Exploitation vector: Local

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 execute arbitrary code on the target system with elevated privileges.

The vulnerability exists due to a boundary error within the Microsoft RemoteFX Virtual GPU miniport driver. A local unprivileged user can run a specially crafted application on the affected system and execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 7, 8.1, 10 1607 10.0.14393.10, 10 1703 10.0.15063.138, 10 1709 10.0.16299.19, 10 1803 10.0.17134.48, 10 1809 10.0.17763.1, 10

Windows Server: 2016 10.0.14393.10, 2019 10.0.17763.1

---

External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8471

---

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.