SB2019070905 - Privilege escalation in Microsoft Windows Win32k component
Published: July 9, 2019 Updated: July 10, 2019
Security Bulletin ID
SB2019070905
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) NULL pointer dereference (CVE-ID: CVE-2019-1132)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a NULL pointer dereference error when processing objects in memory within the Win32k component. A local user can create a malicious application, launch it on the system and execute arbitrary code with SYSTEM privileges.
Note, this vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.