CVE-2019-3842

2019-04-0920:25:01

CWE-285

redhat

www.cve.org

CVSS3

4.5

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

AI Score

7.2

Confidence

High

EPSS

0.002

Percentile

59.9%

JSON

In systemd before v242-rc4, it was discovered that pam_systemd does not properly sanitize the environment before using the XDG_SEAT variable. It is possible for an attacker, in some particular configurations, to set a XDG_SEAT environment variable which allows for commands to be checked against polkit policies using the “allow_active” element rather than “allow_any”.

CNA Affected

[
  {
    "product": "systemd",
    "vendor": "The systemd Project",
    "versions": [
      {
        "status": "affected",
        "version": "v242-rc4"
      }
    ]
  }
]