SB2019091019 - Privilege escalation in Microsoft Windows Winsock
Published: September 10, 2019
Security Bulletin ID
SB2019091019
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-2019-1215)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the ws2ifsl.sys (Winsock). A local user can run a specially crafted application, trigger memory corruption and execute arbitrary code on the target system with elevated privileges.
Note, this vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.