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TI-2018-06723 Aliases CVE-2018-9275GHSA-24jw-8jpm-q7p5

In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through…

Priority LOW 39CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

In check_user_token in util.c in the Yubico PAM module (aka pam_yubico) 2.18 through 2.25, successful logins can leak file descriptors to the auth mapping file, which can lead to information disclosure (serial number of a device) and/or DoS (reaching the maximum number of file descriptors).

Why it matters now

EPSS 0.01416 72nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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 · 1

CPEVersionsRoleVendor
cpe:2.3:a:yubico:yubico_pam:*:*:*:*:*:yubico:*:*2.18 – 2.25VulnerableYubico
  • cpe:2.3:a:yubico:yubico_pam:*:*:*:*:*:yubico:*:* Versions 2.18 – 2.25 Vulnerable ·Yubico

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-9275
  2. 2026-10-03 Alias added: GHSA-24jw-8jpm-q7p5

References

Patch 1

Advisory 2

Sources

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