SB2019091020 - Privilege escalation in Microsoft Windows CLFS
Published: September 10, 2019
Security Bulletin ID
SB2019091020
CSH 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 vulnerability.
1) Buffer overflow (CVE-ID: CVE-2019-1214)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: 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
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the Windows Common Log File System (CLFS) driver. A local user can create a specially crafted application and execute arbitrary code on the system with elevated privileges.
Note, this vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.