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TI-2013-03853 Aliases CVE-2013-4396GHSA-qw42-qhpr-5gg9

Use-after-free vulnerability in the doImageText function in dix/dixfonts.c in the…

Priority LOW 36CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-399 and the CVSS impact.

Summary

Use-after-free vulnerability in the doImageText function in dix/dixfonts.c in the xorg-server module before 1.14.4 in X.Org X11 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted ImageText request that triggers memory-allocation failure.

Why it matters now

EPSS 0.04077 90th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 22

CPEVersionsRoleVendor
cpe:2.3:a:x:x.org_x11:6.0:*:*:*:*:*:*:*6.0VulnerableX
cpe:2.3:a:x:x.org_x11:6.1:*:*:*:*:*:*:*6.1VulnerableX
cpe:2.3:a:x:x.org_x11:6.3:*:*:*:*:*:*:*6.3VulnerableX
cpe:2.3:a:x:x.org_x11:6.4:*:*:*:*:*:*:*6.4VulnerableX
cpe:2.3:a:x:x.org_x11:6.5.1:*:*:*:*:*:*:*6.5.1VulnerableX
cpe:2.3:a:x:x.org_x11:6.6:*:*:*:*:*:*:*6.6VulnerableX
cpe:2.3:a:x:x.org_x11:6.7:*:*:*:*:*:*:*6.7VulnerableX
cpe:2.3:a:x:x.org_x11:6.8:*:*:*:*:*:*:*6.8VulnerableX
cpe:2.3:a:x:x.org_x11:6.8.1:*:*:*:*:*:*:*6.8.1VulnerableX
cpe:2.3:a:x:x.org_x11:6.8.2:*:*:*:*:*:*:*6.8.2VulnerableX
  • cpe:2.3:a:x:x.org_x11:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:6.1:*:*:*:*:*:*:* Versions 6.1 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:6.3:*:*:*:*:*:*:* Versions 6.3 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:6.4:*:*:*:*:*:*:* Versions 6.4 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:6.5.1:*:*:*:*:*:*:* Versions 6.5.1 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:6.6:*:*:*:*:*:*:* Versions 6.6 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:6.7:*:*:*:*:*:*:* Versions 6.7 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:6.8:*:*:*:*:*:*:* Versions 6.8 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:6.8.1:*:*:*:*:*:*:* Versions 6.8.1 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:6.8.2:*:*:*:*:*:*:* Versions 6.8.2 Vulnerable ·X
Show 12 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:x:x.org_x11:6.9.0:*:*:*:*:*:*:*6.9.0VulnerableX
cpe:2.3:a:x:x.org_x11:7.0:*:*:*:*:*:*:*7.0VulnerableX
cpe:2.3:a:x:x.org_x11:7.1:*:*:*:*:*:*:*7.1VulnerableX
cpe:2.3:a:x:x.org_x11:7.2:*:*:*:*:*:*:*7.2VulnerableX
cpe:2.3:a:x:x.org_x11:7.3:*:*:*:*:*:*:*7.3VulnerableX
cpe:2.3:a:x:x.org_x11:7.4:*:*:*:*:*:*:*7.4VulnerableX
cpe:2.3:a:x:x.org_x11:7.5:*:*:*:*:*:*:*7.5VulnerableX
cpe:2.3:a:x:x.org_x11:7.5:rc1:*:*:*:*:*:*7.5 rc1VulnerableX
cpe:2.3:a:x:x.org_x11:7.6:*:*:*:*:*:*:*7.6VulnerableX
cpe:2.3:a:x:x.org_x11:7.6:rc1:*:*:*:*:*:*7.6 rc1VulnerableX
cpe:2.3:a:x:x.org_x11:7.7:*:*:*:*:*:*:*7.7VulnerableX
cpe:2.3:a:x:x.org_x11:7.7:rc1:*:*:*:*:*:*7.7 rc1VulnerableX
  • cpe:2.3:a:x:x.org_x11:6.9.0:*:*:*:*:*:*:* Versions 6.9.0 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:7.1:*:*:*:*:*:*:* Versions 7.1 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:7.5:rc1:*:*:*:*:*:* Versions 7.5 rc1 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:7.6:rc1:*:*:*:*:*:* Versions 7.6 rc1 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·X
  • cpe:2.3:a:x:x.org_x11:7.7:rc1:*:*:*:*:*:* Versions 7.7 rc1 Vulnerable ·X

Remediation

Red Hat 1 advisory

  • RHSA-2013:1426 Released 2013-10-15 · Red Hat rating Important
    xorg-x11-server security update
    • Red Hat Enterprise Linux (v. 5 server) xorg-x11-server-1.1.1-48.101.el5_10.1, xorg-x11-server-Xdmx-1.1.1-48.101.el5_10.1, xorg-x11-server-Xdmx-1.1.1-48.101.el5_10.1.i386 +26
    • Red Hat Enterprise Linux Desktop (v. 5 client) xorg-x11-server-1.1.1-48.101.el5_10.1, xorg-x11-server-Xdmx-1.1.1-48.101.el5_10.1, xorg-x11-server-Xdmx-1.1.1-48.101.el5_10.1.i386 +10
    • Red Hat Enterprise Linux Desktop (v. 6) xorg-x11-server-1.13.0-11.1.el6_4.2, xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2, xorg-x11-server-Xorg-1.13.0-11.1.el6_4.2 +1
    • Red Hat Enterprise Linux Desktop Optional (v. 6) xorg-x11-server-1.13.0-11.1.el6_4.2, xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2, xorg-x11-server-Xnest-1.13.0-11.1.el6_4.2 +3
    • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) xorg-x11-server-1.1.1-48.101.el5_10.1, xorg-x11-server-sdk-1.1.1-48.101.el5_10.1, xorg-x11-server-sdk-1.1.1-48.101.el5_10.1.i386
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) xorg-x11-server-1.13.0-11.1.el6_4.2, xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2, xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2 +6
    • Red Hat Enterprise Linux Server (v. 6) xorg-x11-server-1.13.0-11.1.el6_4.2, xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2, xorg-x11-server-Xorg-1.13.0-11.1.el6_4.2 +1
    • Red Hat Enterprise Linux Server Optional (v. 6) xorg-x11-server-1.13.0-11.1.el6_4.2, xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2, xorg-x11-server-Xnest-1.13.0-11.1.el6_4.2 +4
    • Red Hat Enterprise Linux Workstation (v. 6) xorg-x11-server-1.13.0-11.1.el6_4.2, xorg-x11-server-Xephyr-1.13.0-11.1.el6_4.2, xorg-x11-server-Xorg-1.13.0-11.1.el6_4.2 +1
    • Red Hat Enterprise Linux Workstation Optional (v. 6) xorg-x11-server-1.13.0-11.1.el6_4.2, xorg-x11-server-Xdmx-1.13.0-11.1.el6_4.2, xorg-x11-server-Xnest-1.13.0-11.1.el6_4.2 +3

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux (v. 5 server)Fixed RHSA-2013:1426
Red Hat Enterprise Linux Desktop (v. 5 client)Fixed RHSA-2013:1426
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2013:1426
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2013:1426
Red Hat Enterprise Linux Desktop Workstation (v. 5 client)Fixed RHSA-2013:1426
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2013:1426
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2013:1426
Red Hat Enterprise Linux Server Optional (v. 6)Fixed RHSA-2013:1426
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2013:1426
Red Hat Enterprise Linux Workstation Optional (v. 6)Fixed RHSA-2013:1426
Not affected: 1 product
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2013-4396
  2. 2026-10-03 Alias added: GHSA-qw42-qhpr-5gg9

References

Patch 1

Advisory 6

Other 1

  • TI-2012-00063 xkeyboard-config before 2.5 in X.Org before 7.6 enables certain XKB debugging functions… CVSS 2.0MEDIUM 4.6
  • TI-2012-01487 The ProcSetEventMask function in difs/events.c in the xfs font server for X.Org X11R6… CVSS 2.0LOW 3.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences