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Fencer Intel
medium 6.4

CVE-2015-0255 json

X.Org Server (aka xserver and xorg-server) before 1.16.3 and 1.17.x before 1.17.1 allows remote attackers to obtain sensitive information f…

published 2015-02-13 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-0275

cvss
6.4
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.3%
EPSS 4.3% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

X.Org Server (aka xserver and xorg-server) before 1.16.3 and 1.17.x before 1.17.1 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (crash) via a crafted string length value in a XkbSetGeometry request.

Patch / fix

  • xorg-server Debian 14, Debian 13, Debian 12 2:1.16.4-1

debian advisories DEBIAN-CVE-2015-0255

  • xorg-server Ubuntu 14.04 LTS 2:1.15.1-0ubuntu2.7
  • xorg-server-lts-utopic Ubuntu 14.04 LTS 2:1.16.0-1ubuntu1.2~trusty2
  • vnc4 Ubuntu Pro 14.04 LTS 4.1.1+xorg4.3.0-37ubuntu5.0.2+esm1
  • vnc4 Ubuntu Pro 16.04 LTS 4.1.1+xorg4.3.0-37.3ubuntu2.1+esm1

ubuntu advisories UBUNTU-CVE-2015-0255

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • xorg-x11-server RHEL 6 1.15.0-26.el6_6
  • xorg-x11-server RHEL 7 1.15.0-33.el7_1
  • xorg-x11-server RHEL 7 1.15.0-33.ael7b_1
  • xorg-x11-server-Xdmx RHEL 6 1.15.0-26.el6_6
  • xorg-x11-server-Xdmx RHEL 7 1.15.0-33.el7_1
  • xorg-x11-server-Xdmx RHEL 7 1.15.0-33.ael7b_1
  • xorg-x11-server-Xorg RHEL 6 1.15.0-26.el6_6
  • xorg-x11-server-Xorg RHEL 7 1.15.0-33.el7_1

red hat advisories RHSA-2015:0797

  • fltk SLES for SAP 12, SLES 12, SLED 12 +1 more 1.3.2-10.2
  • tigervnc SLES for SAP 12, SLES 12, SLED 12 1.4.1-32.1
  • xorg-x11-server SLES 12, SLED 12, SLE Software Development Kit 12 +1 more 7.6_1.15.2-21.1

suse advisories SUSE-SU-2015:0939-1SUSE-SU-2015:0398-1SUSE-SU-2015:0399-1SUSE-SU-2015:0400-1SUSE-SU-2015:0401-1SUSE-SU-2015:0402-1

  • tigervnc openSUSE Tumbleweed 1.7.0-2.1

opensuse advisories openSUSE-SU-2024:10056-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-0255 updated cvss 3.6

xorg-x11-server: information leak in the XkbSetGeometry request of X servers

  • Red Hat Enterprise Linux 5 xorg-x11-server
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) xorg-x11-server 1.15.0-33.el7_1, xorg-x11-server-Xorg 1.15.0-33.el7_1, xorg-x11-server-common 1.15.0-33.el7_1, xorg-x11-server-Xephyr 1.15.0-33.el7_1 Red Hat Enterprise Linux Client Optional (v. 7) xorg-x11-server-Xdmx 1.15.0-33.el7_1, xorg-x11-server-Xvfb 1.15.0-33.el7_1, xorg-x11-server-Xnest 1.15.0-33.el7_1, xorg-x11-server-source 1.15.0-33.el7_1 Red Hat Enterprise Linux ComputeNode Optional (v. 7) xorg-x11-server 1.15.0-33.el7_1, xorg-x11-server-Xdmx 1.15.0-33.el7_1, xorg-x11-server-Xorg 1.15.0-33.el7_1, xorg-x11-server-Xvfb 1.15.0-33.el7_1, xorg-x11-server-Xnest 1.15.0-33.el7_1, xorg-x11-server-common 1.15.0-33.el7_1, +2 more Red Hat Enterprise Linux Desktop (v. 6) xorg-x11-server 1.15.0-26.el6_6, xorg-x11-server-Xorg 1.15.0-26.el6_6, xorg-x11-server-common 1.15.0-26.el6_6, xorg-x11-server-Xephyr 1.15.0-26.el6_6 Red Hat Enterprise Linux Desktop Optional (v. 6) xorg-x11-server-Xdmx 1.15.0-26.el6_6, xorg-x11-server-Xvfb 1.15.0-26.el6_6, xorg-x11-server-Xnest 1.15.0-26.el6_6, xorg-x11-server-source 1.15.0-26.el6_6 Red Hat Enterprise Linux HPC Node Optional (v. 6) xorg-x11-server 1.15.0-26.el6_6, xorg-x11-server-Xdmx 1.15.0-26.el6_6, xorg-x11-server-Xorg 1.15.0-26.el6_6, xorg-x11-server-Xvfb 1.15.0-26.el6_6, xorg-x11-server-Xnest 1.15.0-26.el6_6, xorg-x11-server-common 1.15.0-26.el6_6, +2 more
    +8 more products
    Red Hat Enterprise Linux Server (v. 6) xorg-x11-server 1.15.0-26.el6_6, xorg-x11-server-Xorg 1.15.0-26.el6_6, xorg-x11-server-common 1.15.0-26.el6_6, xorg-x11-server-Xephyr 1.15.0-26.el6_6 Red Hat Enterprise Linux Server (v. 7) xorg-x11-server 1.15.0-33.el7_1, xorg-x11-server 1.15.0-33.ael7b_1, xorg-x11-server-Xorg 1.15.0-33.el7_1, xorg-x11-server-common 1.15.0-33.el7_1, xorg-x11-server-Xephyr 1.15.0-33.el7_1, xorg-x11-server-Xorg 1.15.0-33.ael7b_1, +2 more Red Hat Enterprise Linux Server Optional (v. 6) xorg-x11-server-Xdmx 1.15.0-26.el6_6, xorg-x11-server-Xvfb 1.15.0-26.el6_6, xorg-x11-server-Xnest 1.15.0-26.el6_6, xorg-x11-server-source 1.15.0-26.el6_6 Red Hat Enterprise Linux Server Optional (v. 7) xorg-x11-server-Xdmx 1.15.0-33.el7_1, xorg-x11-server-Xvfb 1.15.0-33.el7_1, xorg-x11-server-Xnest 1.15.0-33.el7_1, xorg-x11-server-source 1.15.0-33.el7_1, xorg-x11-server-Xdmx 1.15.0-33.ael7b_1, xorg-x11-server-Xvfb 1.15.0-33.ael7b_1, +2 more Red Hat Enterprise Linux Workstation (v. 6) xorg-x11-server 1.15.0-26.el6_6, xorg-x11-server-Xorg 1.15.0-26.el6_6, xorg-x11-server-common 1.15.0-26.el6_6, xorg-x11-server-Xephyr 1.15.0-26.el6_6 Red Hat Enterprise Linux Workstation (v. 7) xorg-x11-server 1.15.0-33.el7_1, xorg-x11-server-Xorg 1.15.0-33.el7_1, xorg-x11-server-common 1.15.0-33.el7_1, xorg-x11-server-Xephyr 1.15.0-33.el7_1 Red Hat Enterprise Linux Workstation Optional (v. 6) xorg-x11-server-Xdmx 1.15.0-26.el6_6, xorg-x11-server-Xvfb 1.15.0-26.el6_6, xorg-x11-server-Xnest 1.15.0-26.el6_6, xorg-x11-server-source 1.15.0-26.el6_6 Red Hat Enterprise Linux Workstation Optional (v. 7) xorg-x11-server-Xdmx 1.15.0-33.el7_1, xorg-x11-server-Xvfb 1.15.0-33.el7_1, xorg-x11-server-Xnest 1.15.0-33.el7_1, xorg-x11-server-source 1.15.0-33.el7_1
    fixed: vendor fix RHSA-2015:0797

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.33% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:N/A:P

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.