# CVE-2019-7443: libkf5auth5: KDE KAuth before 5.55 allows the passing of parameters with arbitrary types to helpers running as root over DBus via...

CVE-2019-7443 is fixed in 2 products on 1 platform, first by libkf5auth-data 5.44.0-0ubuntu1+esm1, released May 7, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-7443
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0235
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 7, 2019

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libkf5auth-data Ubuntu 18.04.6 LTS (bionic) | 5.44.0-0ubuntu1+esm1 | [libkf5auth-data 5.44.0-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libkf5auth-data-5.44.0-0ubuntu1-esm1.md) | May 7, 2019 |
| Linux | libkf5auth5 Ubuntu 18.04.6 LTS (bionic) | 5.44.0-0ubuntu1+esm1 | [libkf5auth5 5.44.0-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libkf5auth5-5.44.0-0ubuntu1-esm1.md) | May 7, 2019 |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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