Buffer overflow in Windows and Windows Server - CVE-2019-1215
Published: September 10, 2019
Vulnerability identifier: #VU20973
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Green
CVE-ID: CVE-2019-1215
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability description
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.
How to mitigate CVE-2019-1215
Install updates from vendor's website.