Read the docs
TI-2018-13122 Aliases CVE-2018-18557GHSA-p963-j6qf-rp28

LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6…

Priority MEDIUM 54CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and 4.0.9 (with JBIG enabled) decodes arbitrarily-sized JBIG into a buffer, ignoring the buffer size, which leads to a tif_jbig.c JBIGDecode out-of-bounds write.

Why it matters now

EPSS 0.1496 96th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
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 · 7

CPEVersionsRoleVendor
cpe:2.3:a:libtiff:libtiff:4.0.9:*:*:*:*:*:*:*4.0.9Vulnerablelibtiff
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: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:a:libtiff:libtiff:4.0.9:*:*:*:*:*:*:* Versions 4.0.9 Vulnerable ·libtiff
  • 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
  • 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

Remediation

Red Hat 1 advisory

  • RHSA-2019:2053 Released 2019-08-06 · Red Hat rating Moderate
    libtiff security update
    • Red Hat Enterprise Linux Client (v. 7) libtiff-4.0.3-32.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) libtiff-devel-4.0.3-32.el7, libtiff-static-4.0.3-32.el7, libtiff-tools-4.0.3-32.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) libtiff-4.0.3-32.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libtiff-devel-4.0.3-32.el7, libtiff-static-4.0.3-32.el7, libtiff-tools-4.0.3-32.el7
    • Red Hat Enterprise Linux Server (v. 7) libtiff-4.0.3-32.el7, libtiff-4.0.3-32.el7.ppc, libtiff-devel-4.0.3-32.el7 +1
    • Red Hat Enterprise Linux Server Optional (v. 7) libtiff-static-4.0.3-32.el7, libtiff-static-4.0.3-32.el7.ppc, libtiff-tools-4.0.3-32.el7
    • Red Hat Enterprise Linux Workstation (v. 7) libtiff-4.0.3-32.el7, libtiff-devel-4.0.3-32.el7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libtiff-static-4.0.3-32.el7, libtiff-tools-4.0.3-32.el7

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2019:2053
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2019:2053
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2019:2053
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2019:2053
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:2053
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2019:2053
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2019:2053
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2019:2053
Not affected: 3 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-18557
  2. 2026-10-03 Alias added: GHSA-p963-j6qf-rp28

References

Exploit 1

Advisory 7

Other 2

Sources

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