Systemd
CVE-2013-4394
MEDIUM
Severity by source
AV:L/AC:H/Au:N/C:C/I:C/A:P
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
AV:L/AC:H/Au:N/C:C/I:C/A:P
Lifecycle Timeline
1DescriptionCVE.org
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."
AnalysisAI
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. Rated medium severity (CVSS 5.9). This Incorrect Default Permissions vulnerability could allow attackers to access resources due to overly permissive default settings.
Technical ContextAI
This vulnerability is classified as Incorrect Default Permissions (CWE-276), which allows attackers to access resources due to overly permissive default settings. 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." Affected products include: Systemd Project Systemd, Debian Debian Linux.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Set restrictive default permissions, follow principle of least privilege, review defaults during deployment.
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Same weakness CWE-276 – Incorrect Default Permissions
View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today