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medium 6.5

CVE-2014-8100 json

The Render extension in XFree86 4.0.1, X.Org X Window System (aka X11 or X) X11R6.7, and X.Org Server (aka xserver and xorg-server) before…

published 2014-12-10 11 y ago modified 2026-06-17 4 mo ago also EUVD-2014-7947

cvss
6.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.4%
EPSS 4.4% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

The Render extension in XFree86 4.0.1, X.Org X Window System (aka X11 or X) X11R6.7, and X.Org Server (aka xserver and xorg-server) before 1.16.3 allows remote authenticated users to cause a denial of service (out-of-bounds read or write) or possibly execute arbitrary code via a crafted length or index value to the (1) ProcRenderQueryVersion, (2) SProcRenderQueryVersion, (3) SProcRenderQueryPictFormats, (4) SProcRenderQueryPictIndexValues, (5) SProcRenderCreatePicture, (6) SProcRenderChangePicture, (7) SProcRenderSetPictureClipRectangles, (8) SProcRenderFreePicture, (9) SProcRenderComposite, (10) SProcRenderScale, (11) SProcRenderCreateGlyphSet, (12) SProcRenderReferenceGlyphSet, (13) SProcRenderFreeGlyphSet, (14) SProcRenderFreeGlyphs, or (15) SProcRenderCompositeGlyphs function.

Patch / fix

  • xorg-server Debian 14, Debian 13, Debian 12 2:1.16.2.901-1

debian advisories DEBIAN-CVE-2014-8100

  • xorg-server Ubuntu 14.04 LTS 2:1.15.1-0ubuntu2.4

ubuntu advisories UBUNTU-CVE-2014-8100

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 1.15.0-25.el6_6
  • xorg-x11-server RHEL 7 1.15.0-7.el7_0.3
  • xorg-x11-server-Xdmx RHEL 6 1.15.0-25.el6_6
  • xorg-x11-server-Xdmx RHEL 7 1.15.0-7.el7_0.3
  • xorg-x11-server-Xorg RHEL 6 1.15.0-25.el6_6
  • xorg-x11-server-Xorg RHEL 7 1.15.0-7.el7_0.3
  • xorg-x11-server-Xvfb RHEL 6 1.15.0-25.el6_6
  • xorg-x11-server-Xvfb RHEL 7 1.15.0-7.el7_0.3

red hat advisories RHSA-2014:1983RHSA-2014:1982

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-2014-8100 updated cvss 2.3

xorg-x11-server: out of bounds access due to not validating length or offset values in Render extension

  • Red Hat Enterprise Linux (v. 5 server) xorg-x11-server 1.1.1-48.107.el5_11, xorg-x11-server-sdk 1.1.1-48.107.el5_11, xorg-x11-server-Xdmx 1.1.1-48.107.el5_11, xorg-x11-server-Xorg 1.1.1-48.107.el5_11, xorg-x11-server-Xvfb 1.1.1-48.107.el5_11, xorg-x11-server-Xnest 1.1.1-48.107.el5_11, +2 more
    fixed: vendor fix RHSA-2014:1982
  • Red Hat Enterprise Linux Client (v. 7) xorg-x11-server 1.15.0-7.el7_0.3, xorg-x11-server-Xorg 1.15.0-7.el7_0.3, xorg-x11-server-common 1.15.0-7.el7_0.3, xorg-x11-server-Xephyr 1.15.0-7.el7_0.3 Red Hat Enterprise Linux Client Optional (v. 7) xorg-x11-server-Xdmx 1.15.0-7.el7_0.3, xorg-x11-server-Xvfb 1.15.0-7.el7_0.3, xorg-x11-server-Xnest 1.15.0-7.el7_0.3, xorg-x11-server-source 1.15.0-7.el7_0.3 Red Hat Enterprise Linux ComputeNode Optional (v. 7) xorg-x11-server 1.15.0-7.el7_0.3, xorg-x11-server-Xdmx 1.15.0-7.el7_0.3, xorg-x11-server-Xorg 1.15.0-7.el7_0.3, xorg-x11-server-Xvfb 1.15.0-7.el7_0.3, xorg-x11-server-Xnest 1.15.0-7.el7_0.3, xorg-x11-server-common 1.15.0-7.el7_0.3, +2 more
    fixed: vendor fix RHSA-2014:1983
  • Red Hat Enterprise Linux Desktop (v. 5 client) xorg-x11-server 1.1.1-48.107.el5_11, xorg-x11-server-Xdmx 1.1.1-48.107.el5_11, xorg-x11-server-Xorg 1.1.1-48.107.el5_11, xorg-x11-server-Xvfb 1.1.1-48.107.el5_11, xorg-x11-server-Xnest 1.1.1-48.107.el5_11, xorg-x11-server-Xephyr 1.1.1-48.107.el5_11, +1 more
    fixed: vendor fix RHSA-2014:1982
  • Red Hat Enterprise Linux Desktop (v. 6) xorg-x11-server 1.15.0-25.el6_6, xorg-x11-server-Xorg 1.15.0-25.el6_6, xorg-x11-server-common 1.15.0-25.el6_6, xorg-x11-server-Xephyr 1.15.0-25.el6_6 Red Hat Enterprise Linux Desktop Optional (v. 6) xorg-x11-server-Xdmx 1.15.0-25.el6_6, xorg-x11-server-Xvfb 1.15.0-25.el6_6, xorg-x11-server-Xnest 1.15.0-25.el6_6, xorg-x11-server-source 1.15.0-25.el6_6
    fixed: vendor fix RHSA-2014:1983
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) xorg-x11-server 1.1.1-48.107.el5_11, xorg-x11-server-sdk 1.1.1-48.107.el5_11
    fixed: vendor fix RHSA-2014:1982
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) xorg-x11-server 1.15.0-25.el6_6, xorg-x11-server-Xdmx 1.15.0-25.el6_6, xorg-x11-server-Xorg 1.15.0-25.el6_6, xorg-x11-server-Xvfb 1.15.0-25.el6_6, xorg-x11-server-Xnest 1.15.0-25.el6_6, xorg-x11-server-common 1.15.0-25.el6_6, +2 more Red Hat Enterprise Linux Server (v. 6) xorg-x11-server 1.15.0-25.el6_6, xorg-x11-server-Xorg 1.15.0-25.el6_6, xorg-x11-server-common 1.15.0-25.el6_6, xorg-x11-server-Xephyr 1.15.0-25.el6_6 Red Hat Enterprise Linux Server (v. 7) xorg-x11-server 1.15.0-7.el7_0.3, xorg-x11-server-Xorg 1.15.0-7.el7_0.3, xorg-x11-server-common 1.15.0-7.el7_0.3, xorg-x11-server-Xephyr 1.15.0-7.el7_0.3 Red Hat Enterprise Linux Server Optional (v. 6) xorg-x11-server-Xdmx 1.15.0-25.el6_6, xorg-x11-server-Xvfb 1.15.0-25.el6_6, xorg-x11-server-Xnest 1.15.0-25.el6_6, xorg-x11-server-source 1.15.0-25.el6_6 Red Hat Enterprise Linux Server Optional (v. 7) xorg-x11-server-Xdmx 1.15.0-7.el7_0.3, xorg-x11-server-Xvfb 1.15.0-7.el7_0.3, xorg-x11-server-Xnest 1.15.0-7.el7_0.3, xorg-x11-server-source 1.15.0-7.el7_0.3 Red Hat Enterprise Linux Workstation (v. 6) xorg-x11-server 1.15.0-25.el6_6, xorg-x11-server-Xorg 1.15.0-25.el6_6, xorg-x11-server-common 1.15.0-25.el6_6, xorg-x11-server-Xephyr 1.15.0-25.el6_6
    +3 more products
    Red Hat Enterprise Linux Workstation (v. 7) xorg-x11-server 1.15.0-7.el7_0.3, xorg-x11-server-Xorg 1.15.0-7.el7_0.3, xorg-x11-server-common 1.15.0-7.el7_0.3, xorg-x11-server-Xephyr 1.15.0-7.el7_0.3 Red Hat Enterprise Linux Workstation Optional (v. 6) xorg-x11-server-Xdmx 1.15.0-25.el6_6, xorg-x11-server-Xvfb 1.15.0-25.el6_6, xorg-x11-server-Xnest 1.15.0-25.el6_6, xorg-x11-server-source 1.15.0-25.el6_6 Red Hat Enterprise Linux Workstation Optional (v. 7) xorg-x11-server-Xdmx 1.15.0-7.el7_0.3, xorg-x11-server-Xvfb 1.15.0-7.el7_0.3, xorg-x11-server-Xnest 1.15.0-7.el7_0.3, xorg-x11-server-source 1.15.0-7.el7_0.3
    fixed: vendor fix RHSA-2014:1983

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

4.37% 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 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.