PT-2013-4996 · Freedesktop.Org+2 · Policykit Local Authority+2

Florian Weimer · Published 2013-10-28 · Updated 2022-01-31 · CVE-2013-4394

Positive Technologies (AI Summary)

CVSS v2.0

5.9

Medium

Base vector

AV:L/AC:H/Au:N/C:C/I:C/A:P

Name of the Vulnerable Software and Affected Versions systemd (affected versions not specified)

Description The issue allows local users in a specific group to modify the Xorg X11 Server configuration file and possibly gain privileges. This is achieved through the SetX11Keyboard function when PolicyKit Local Authority (PKLA) is used to change group permissions on the X Keyboard Extension (XKB) layouts description. The exploitation involves the use of special and control characters.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

CVE-2013-4394

DSA-2777-1

Affected Products

Policykit Local Authority

Xorg-X11-Server

Systemd

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2013-4394 · Security Note
• http://debian.org/security/2013/dsa-2777 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2013-4394 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2013-4394 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2013-4394 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=862324 · Patch
• https://security.gentoo.org/glsa/201612-34 · Vendor Advisory
• http://openwall.com/lists/oss-security/2013/10/01/9 · Note
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725357 · Note