SB2020021119 - Multiple vulnerabilities in Microsoft Windows Key Isolation Service
Published: February 11, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2020-0756)
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.
2) Out-of-bounds read (CVE-ID: CVE-2020-0755)
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.
3) Out-of-bounds read (CVE-ID: CVE-2020-0748)
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.
4) Out-of-bounds read (CVE-ID: CVE-2020-0677)
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.
5) Out-of-bounds read (CVE-ID: CVE-2020-0676)
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.
6) Out-of-bounds read (CVE-ID: CVE-2020-0675)
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.
Remediation
Install update from vendor's website.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0756
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0755
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0748
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0677
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0676
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0675