Permissions, Privileges, and Access Controls in systemd - CVE-2018-16888
Published: January 22, 2019
Vulnerability identifier: #VU17120
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2018-16888
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Freedesktop.org
Affected software:
systemd
systemd
Detailed vulnerability description
The vulnerability allows a local attacker to escalate privileges on the system.
The vulnerability exists due to incorrect check the content of PIDFile files before using it to kill processes. A local attacker can who is able to write to the PIDFile of the mentioned service can trick systemd into killing other services and/or privileged processes.
How to mitigate CVE-2018-16888
Update to version 237.