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Improper Input Validation Affecting kauth package, versions <5.18.0-0ubuntu2+esm1

Severity

 Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
2.35% (83rd percentile)

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  • Snyk IDSNYK-UBUNTU1604-KAUTH-1153342
  • published22 Mar 2026
  • disclosed7 May 2019
Report a new vulnerability Found a mistake?

Introduced: 7 May 2019

CVE-2019-7443  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 kauth to version 5.18.0-0ubuntu2+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kauth package and not the kauth package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

KDE KAuth before 5.55 allows the passing of parameters with arbitrary types to helpers running as root over DBus via DBusHelperProxy.cpp. Certain types can cause crashes, and trigger the decoding of arbitrary images with dynamically loaded plugins. In other words, KAuth unintentionally causes this plugin code to run as root, which increases the severity of any possible exploitation of a plugin vulnerability.

References