Vulnerability CVE-2019-7443
Published: 2019-05-07

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.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Opensuse -> Backports 
Opensuse -> LEAP 
KDE -> Kauth 
Fedoraproject -> Fedora 

 References:
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/
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