SB2023070328 - Local denial of service in GNU Screen
Published: July 3, 2023 Updated: October 25, 2024
Security Bulletin ID
SB2023070328
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Incorrect default permissions (CVE-ID: CVE-2023-24626)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to missing permissions checks in socket.c, which allows a local user to send a privileged SIGHUP signal to any PID, causing a denial of service or disruption of the target process.
Remediation
Install update from vendor's website.