SB2023040807 - Red Hat Enterprise Linux 8.4 Extended Update Support update for tigervnc
Published: April 8, 2023
Security Bulletin ID
SB2023040807
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) Use-after-free (CVE-ID: CVE-2023-1393)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error when processing deletion of a compositor overlay window. A local user can trigger a use-after-free error and execute arbitrary code on the system.
Remediation
Install update from vendor's website.