SB2019040809 - Ubuntu update for systemd
Published: April 8, 2019
Security Bulletin ID
SB2019040809
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) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-3842)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to pam_systemd creates a user session using environmental parameters. A local user can spoof an active session and gain additional PolicyKit privileges.
Remediation
Install update from vendor's website.