CVE-2019-3842
HIGH 7.0EPSS 1.2%
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".
- CVSS v3.1
- 7.0 HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v3.0
- 4.5 MEDIUM
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L - CVSS v2.0
- 4.4 MEDIUM
AV:L/AC:M/Au:N/C:P/I:P/A:P - EPSS
- 1.21% chance of exploitation in the next 30 days, 66th percentile
- Published
- 2019-04-09
- Updated
- 2025-06-09