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TI-2016-04663 Aliases CVE-2016-5384GHSA-g839-937g-3fhv

fontconfig before 2.12.1 does not validate offsets, which allows local users to trigger…

Priority LOW 34CWE-415Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 8 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-415 and the CVSS impact.

Summary

fontconfig before 2.12.1 does not validate offsets, which allows local users to trigger arbitrary free calls and consequently conduct double free attacks and execute arbitrary code via a crafted cache file.

Why it matters now

EPSS 0.00403 34th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 8 fixed, 3 without a fix

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 · 7

CPEVersionsRoleVendor
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*23VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*24VulnerableFedoraproject
cpe:2.3:a:fontconfig_project:fontconfig:*:*:*:*:*:*:*:*before 2.12.1Vulnerablefontconfig project
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*12.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*16.04VulnerableCanonical
  • cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* Versions 23 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:* Versions 24 Vulnerable ·Fedoraproject
  • cpe:2.3:a:fontconfig_project:fontconfig:*:*:*:*:*:*:*:* Versions before 2.12.1 Vulnerable ·fontconfig project
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* Versions 12.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical

Remediation

Red Hat 1 advisory

  • RHSA-2016:2601 Released 2016-11-03 · Red Hat rating Moderate
    fontconfig security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) fontconfig-2.10.95-10.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) fontconfig-devel-2.10.95-10.el7, fontconfig-devel-doc-2.10.95-10.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) fontconfig-2.10.95-10.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) fontconfig-devel-2.10.95-10.el7, fontconfig-devel-doc-2.10.95-10.el7
    • Red Hat Enterprise Linux Server (v. 7) fontconfig-2.10.95-10.el7, fontconfig-2.10.95-10.el7.ppc, fontconfig-devel-2.10.95-10.el7 +1
    • Red Hat Enterprise Linux Server Optional (v. 7) fontconfig-devel-doc-2.10.95-10.el7
    • Red Hat Enterprise Linux Workstation (v. 7) fontconfig-2.10.95-10.el7, fontconfig-devel-2.10.95-10.el7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) fontconfig-devel-doc-2.10.95-10.el7

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Virtualization 3AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2016:2601
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:2601
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2016:2601
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2016:2601
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:2601
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:2601
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:2601
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2016:2601

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-5384
  2. 2026-10-03 Alias added: GHSA-g839-937g-3fhv

References

Patch 2

Advisory 5

Sources

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