Improper Authorization Affecting systemd package, versions <241-3


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.22% (60th percentile)

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  • Snyk IDSNYK-DEBIAN11-SYSTEMD-522914
  • published9 Apr 2019
  • disclosed9 Apr 2019

Introduced: 9 Apr 2019

CVE-2019-3842  (opens in a new tab)
CWE-285  (opens in a new tab)

How to fix?

Upgrade Debian:11 systemd to version 241-3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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 Scores

version 3.1