SB2018050813 - Privilege escalation in Microsoft Windows win32k.sys driver
Published: May 8, 2018 Updated: November 7, 2019
Security Bulletin ID
SB2018050813
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2018-8120)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to boundary error in win32k.sys driver. A local user can execute arbitrary code with SYSTEM privileges.
Note: this vulnerability is being actively exploited in limited targeted attacks.Remediation
Install update from vendor's website.