SB2021060815 - OS Kernel information disclosure Microsoft Windows
Published: June 8, 2021 Updated: June 27, 2021
Security Bulletin ID
SB2021060815
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Privilege Management (CVE-ID: CVE-2021-31955)
CWE-ID: CWE-269 - Improper Privilege Management
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Green
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to improper privilege management. A local unprivileged user can read contents of Kernel memory from a user mode process.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.