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TI-2017-13375 Aliases CVE-2017-18190GHSA-vfqc-qhm9-65mm

A localhost.localdomain whitelist entry in valid_host() in scheduler/client.c in CUPS…

Priority LOW 38CWE-290Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 8 fixed, 1 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-290.

Summary

A localhost.localdomain whitelist entry in valid_host() in scheduler/client.c in CUPS before 2.2.2 allows remote attackers to execute arbitrary IPP commands by sending POST requests to the CUPS daemon in conjunction with DNS rebinding. The localhost.localdomain name is often resolved via a DNS server (neither the OS nor the web browser is responsible for ensuring that localhost.localdomain is 127.0.0.1).

Why it matters now

EPSS 0.02923 87th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 8 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 · 5

CPEVersionsRoleVendor
cpe:2.3:a:apple:cups:*:*:*:*:*:*:*:*before 2.2.2VulnerableApple
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
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:a:apple:cups:*:*:*:*:*:*:*:* Versions before 2.2.2 Vulnerable ·Apple
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 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

Remediation

Red Hat 1 advisory

  • RHSA-2020:3864 Released 2020-09-29 · Red Hat rating Moderate
    cups security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) cups-1:1.6.3-51.el7, cups-client-1:1.6.3-51.el7, cups-filesystem-1:1.6.3-51.el7 +2
    • Red Hat Enterprise Linux Client Optional (v. 7) cups-devel-1:1.6.3-51.el7, cups-ipptool-1:1.6.3-51.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) cups-1:1.6.3-51.el7, cups-client-1:1.6.3-51.el7, cups-filesystem-1:1.6.3-51.el7 +2
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) cups-devel-1:1.6.3-51.el7, cups-ipptool-1:1.6.3-51.el7
    • Red Hat Enterprise Linux Server (v. 7) cups-1:1.6.3-51.el7, cups-client-1:1.6.3-51.el7, cups-devel-1:1.6.3-51.el7 +5
    • Red Hat Enterprise Linux Server Optional (v. 7) cups-ipptool-1:1.6.3-51.el7
    • Red Hat Enterprise Linux Workstation (v. 7) cups-1:1.6.3-51.el7, cups-client-1:1.6.3-51.el7, cups-devel-1:1.6.3-51.el7 +3
    • Red Hat Enterprise Linux Workstation Optional (v. 7) cups-ipptool-1:1.6.3-51.el7

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: Out of support scope
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:3864
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:3864
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:3864
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:3864
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:3864
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:3864
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:3864
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:3864
Not affected: 2 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-18190
  2. 2026-10-03 Alias added: GHSA-vfqc-qhm9-65mm

References

Exploit 1

Patch 1

Advisory 3

Sources

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