Executive Summary

Summary
Title KAuth and KDELibs: Privilege escalation
Informations
Name GLSA-201706-29 First vendor Publication 2017-06-27
Vendor Gentoo Last vendor Modification 2017-06-27
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A vulnerability in KAuth and KDELibs allows local users to gain root privileges.

Background

KAuth provides a convenient, system-integrated way to offload actions that need to be performed as a privileged user (root, for example) to small (hopefully secure) helper utilities.

The KDE libraries, basis of KDE and used by many open source projects.

Description

KAuth and KDELibs contains a logic flaw in which the service invoking D-Bus is not properly checked. This allows spoofing the identity of the caller and with some carefully crafted calls can lead to gaining root from an unprivileged account.

Impact

A local attacker could spoof the identity of the caller invoking D-Bus, possibly resulting in gaining privileges.

Workaround

There is no known workaround at this time.

Resolution

All KAuth users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=kde-frameworks/kauth-5.29.0-r1"

All KDELibs users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=kde-frameworks/kdelibs-4.14.32"

References

[ 1 ] CVE-2017-8422 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-8422

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

https://security.gentoo.org/glsa/201706-29

Original Source

Url : http://security.gentoo.org/glsa/glsa-201706-29.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-290 Authentication Bypass by Spoofing

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 45

Nessus® Vulnerability Scanner

Date Description
2017-07-17 Name : The remote Fedora host is missing a security update.
File : fedora_2017-dd51077c87.nasl - Type : ACT_GATHER_INFO
2017-07-17 Name : The remote Fedora host is missing a security update.
File : fedora_2017-0898c704a1.nasl - Type : ACT_GATHER_INFO
2017-07-13 Name : The remote Virtuozzo host is missing a security update.
File : Virtuozzo_VZLSA-2017-1264.nasl - Type : ACT_GATHER_INFO
2017-06-28 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201706-29.nasl - Type : ACT_GATHER_INFO
2017-05-26 Name : The remote Debian host is missing a security update.
File : debian_DLA-952.nasl - Type : ACT_GATHER_INFO
2017-05-23 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20170522_kdelibs_on_SL7_x.nasl - Type : ACT_GATHER_INFO
2017-05-23 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-1264.nasl - Type : ACT_GATHER_INFO
2017-05-23 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2017-1264.nasl - Type : ACT_GATHER_INFO
2017-05-23 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2017-1264.nasl - Type : ACT_GATHER_INFO
2017-05-19 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-1335-1.nasl - Type : ACT_GATHER_INFO
2017-05-17 Name : The remote Fedora host is missing a security update.
File : fedora_2017-8b4898ce81.nasl - Type : ACT_GATHER_INFO
2017-05-17 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2017-136-02.nasl - Type : ACT_GATHER_INFO
2017-05-16 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-3286-1.nasl - Type : ACT_GATHER_INFO
2017-05-16 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-575.nasl - Type : ACT_GATHER_INFO
2017-05-16 Name : The remote Fedora host is missing a security update.
File : fedora_2017-aff6f6bd9d.nasl - Type : ACT_GATHER_INFO
2017-05-16 Name : The remote Fedora host is missing a security update.
File : fedora_2017-7e3437b905.nasl - Type : ACT_GATHER_INFO
2017-05-16 Name : The remote Fedora host is missing a security update.
File : fedora_2017-6bdbf57f29.nasl - Type : ACT_GATHER_INFO
2017-05-15 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3849.nasl - Type : ACT_GATHER_INFO
2017-05-11 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_0baee383356c11e7b9a950e549ebab6c.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2017-06-29 13:23:35
  • Multiple Updates
2017-06-27 13:21:19
  • First insertion