SB2021041370 - Integer underflow in X.org Server
Published: April 13, 2021
Security Bulletin ID
SB2021041370
Severity
Low
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) Integer underflow (CVE-ID: CVE-2021-3472)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer underflow within the XChangeFeedbackControl() function. A local user can run a specially crafted program to trigger integer underflow and escalate privileges on the system.
Remediation
Install update from vendor's website.