CVE Database

CVE-2013-4394

Impact: Moderate
Public: 2013-09-23
Bugzilla: 862324: CVE-2013-4394 systemd: Improper sanitization of invalid XKB layouts descriptions (privilege escalation when custom PolicyKit local authority file used)

Details

The MITRE CVE dictionary describes this issue as:

The SetX11Keyboard function in systemd, when PolicyKit Local Authority (PKLA) is used to change the group permissions on the X Keyboard Extension (XKB) layouts description, allows local users in the group to modify the Xorg X11 Server configuration file and possibly gain privileges via vectors involving "special and control characters."

Find out more about CVE-2013-4394 from the MITRE CVE dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score: 5.9
Base Metrics: AV:L/AC:H/Au:N/C:C/I:C/A:P
Access Vector: Local
Access Complexity: High
Authentication: None
Confidentiality Impact: Complete
Integrity Impact: Complete
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date

External References

Acknowledgements

This issue was discovered by Florian Weimer of the Red Hat Product Security Team.

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.