Out-of-bounds read in Microsoft Windows and Windows Server - CVE-2020-0677

Vulnerability identifier: #VU25165

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-0677

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the Cryptography Next Generation (CNG) service. A local user can use a specially crafted application to trigger out-of-bounds read error and read contents of memory on the system.

Microsoft Windows
Windows Server
Solutions Enabler Virtual Appliance
Solutions Enabler
Unisphere for PowerMax Virtual Appliance
Unisphere for PowerMax

Install updates from vendor's website.

Solutions Enabler Virtual Appliance - addressed in versions 9.0.0.19, 9.1.0.6
Solutions Enabler - addressed in versions 9.0.0.19, 9.1.0.6
Unisphere for PowerMax Virtual Appliance - addressed in versions 9.0.2.18, 9.1.0.17
Unisphere for PowerMax - addressed in versions 9.0.2.18, 9.1.0.17

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0677

• Multiple vulnerabilities in Microsoft Windows Key Isolation Service
• Multiple vulnerabilities in Dell EMC Unisphere for PowerMax and Dell EMC Solutions Enabler