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TI-2018-12402 Aliases CVE-2018-17407GHSA-g32p-2jpf-2cg9

An issue was discovered in t1_check_unusual_charstring functions in writet1.c files in…

Priority LOW 38CWE-119Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 7 fixed, 1 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

An issue was discovered in t1_check_unusual_charstring functions in writet1.c files in TeX Live before 2018-09-21. A buffer overflow in the handling of Type 1 fonts allows arbitrary code execution when a malicious font is loaded by one of the vulnerable tools: pdflatex, pdftex, dvips, or luatex.

Why it matters now

EPSS 0.02075 81st percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 7 fixed, 1 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:a:tug:tex_live:*:*:*:*:*:*:*:*before 2018-09-21VulnerableTug
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*18.10VulnerableCanonical
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
  • cpe:2.3:a:tug:tex_live:*:*:*:*:*:*:*:* Versions before 2018-09-21 Vulnerable ·Tug
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Versions 18.10 Vulnerable ·Canonical
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian

Remediation

Red Hat 1 advisory

  • RHSA-2020:1036 Released 2020-03-31 · Red Hat rating Moderate
    texlive security update
    • Red Hat Enterprise Linux Client (v. 7) texlive-2:2012-45.20130427_r30134.el7, texlive-ae-2:svn15878.1.4-45.el7, texlive-algorithms-2:svn15878.0.1-45.el7 +47
    • Red Hat Enterprise Linux Client Optional (v. 7) texlive-adjustbox-2:svn26555.0-45.el7, texlive-adjustbox-doc-2:svn26555.0-45.el7, texlive-ae-doc-2:svn15878.1.4-45.el7 +47
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) texlive-2:2012-45.20130427_r30134.el7, texlive-adjustbox-2:svn26555.0-45.el7, texlive-adjustbox-doc-2:svn26555.0-45.el7 +47
    • Red Hat Enterprise Linux Server (v. 7) texlive-2:2012-45.20130427_r30134.el7, texlive-ae-2:svn15878.1.4-45.el7, texlive-algorithms-2:svn15878.0.1-45.el7 +47
    • Red Hat Enterprise Linux Server Optional (v. 7) texlive-adjustbox-2:svn26555.0-45.el7, texlive-adjustbox-doc-2:svn26555.0-45.el7, texlive-ae-doc-2:svn15878.1.4-45.el7 +47
    • Red Hat Enterprise Linux Workstation (v. 7) texlive-2:2012-45.20130427_r30134.el7, texlive-ae-2:svn15878.1.4-45.el7, texlive-algorithms-2:svn15878.0.1-45.el7 +47
    • Red Hat Enterprise Linux Workstation Optional (v. 7) texlive-adjustbox-2:svn26555.0-45.el7, texlive-adjustbox-doc-2:svn26555.0-45.el7, texlive-ae-doc-2:svn15878.1.4-45.el7 +47

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:1036
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:1036
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:1036
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:1036
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:1036
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:1036
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:1036
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-17407
  2. 2026-10-03 Alias added: GHSA-g32p-2jpf-2cg9

References

Patch 1

Advisory 4

Sources

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