CVE-2018-16888

2019-01-1422:00:00

CWE-250

redhat

www.cve.org

CVSS3

4.4

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H

AI Score

5.6

Confidence

High

EPSS

Percentile

5.1%

JSON

It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.

CNA Affected

[
  {
    "product": "systemd",
    "vendor": "The systemd Project",
    "versions": [
      {
        "status": "affected",
        "version": "v237"
      }
    ]
  }
]