Incorrect Authorization Affecting udev package, versions <234-24.30.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.25% (65th percentile)

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  • Snyk IDSNYK-SLES150-UDEV-2753192
  • published14 Apr 2022
  • disclosed28 May 2019

Introduced: 28 May 2019

CVE-2019-3842  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 udev to version 234-24.30.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream udev package and not the udev package as distributed by SLES. See How to fix? for SLES:15.0 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 Base Scores

version 3.1