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CVE-2019-7443

8.1 · HIGH

KDE KAuth before 5.55 allows the passing of parameters with arbitrary types to helpers running as root over DBus via DBusHelperProxy.cpp.

Published May 7, 2019CWE-20EPSS 2.35%

Overview

CVE-2019-7443 is a high-severity vulnerability. It was published on May 7, 2019 and has a CVSS 3.0 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.0 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.opensuse.org/opensuse-security-announce/2019-02/msg00060.htmlReflists.opensuse.org/opensuse-security-announce/2019-02/msg00065.htmlRefbugzilla.suse.com/show_bug.cgi?id=1124863Refcgit.kde.org/kauth.git/commit/?id=fc70fb0161c1b9144d26389434d34dd135cd3f4aReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DAWLQKTUQJOAPXOFWJQAQCA4LVM2P45F/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PXVUJNXB6QKGPT6YJPJSG3U2BIR5XK5Y/Reflists.opensuse.org/opensuse-security-announce/2019-02/msg00060.htmlReflists.opensuse.org/opensuse-security-announce/2019-02/msg00065.htmlRefbugzilla.suse.com/show_bug.cgi?id=1124863Refcgit.kde.org/kauth.git/commit/?id=fc70fb0161c1b9144d26389434d34dd135cd3f4a

How CyberStrike helps

Frequently asked questions

What is CVE-2019-7443?

CVE-2019-7443 is a high-severity vulnerability. It was published on May 7, 2019 and has a CVSS 3.0 base score of 8.1 (HIGH).

How severe is CVE-2019-7443?

This vulnerability has a CVSS 3.0 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-7443?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-7443?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-7443 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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