SB2018111308 - Privilege escalation in Windows Win32k.sys driver
Published: November 13, 2018
Security Bulletin ID
SB2018111308
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-2018-8589)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within Win32k.sys driver. A local user can create a specially crafted application, run it on vulnerable system and execute code withe superuser privileges.
Note: this vulnerability is being actively exploited in limited targeted attacks.
Remediation
Install update from vendor's website.