CVE-2019-7443 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00060.html http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00065.html https://bugzilla.suse.com/show_bug.cgi?id=1124863 https://cgit.kde.org/kauth.git/commit/?id=fc70fb0161c1b9144d26389434d34dd135cd3f4a https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAWLQKTUQJOAPXOFWJQAQCA4LVM2P45F/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXVUJNXB6QKGPT6YJPJSG3U2BIR5XK5Y/

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1