CVE-2018-9275

Name: CVE-2018-9275
Creator: NVD / NIST
Published: 2018-04-04T18:29:02.497+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.47%

Last modified Jun 17, 2026

CVE-2018-9275 is a vulnerability of currently unknown severity. 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).. EPSS estimates a 1.47% chance of exploitation in the next 30 days.

Description

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).

Metrics

EPSS Probability

1.47%

70.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Yubico	Yubico Pam	>= 2.18, <= 2.25

References

https://bugzilla.opensuse.org/show_bug.cgi?id=1088027Issue Tracking, Third Party Advisory
https://github.com/Yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089baPatch
https://github.com/Yubico/yubico-pam/issues/136Issue Tracking, Third Party Advisory
https://bugzilla.opensuse.org/show_bug.cgi?id=1088027Issue Tracking, Third Party Advisory
https://github.com/Yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089baPatch
https://github.com/Yubico/yubico-pam/issues/136Issue Tracking, Third Party Advisory

Timeline

Published: Apr 4, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-9275?

How severe is CVE-2018-9275?

Severity scoring for CVE-2018-9275 is pending analysis. The EPSS model estimates a 1.47% probability of exploitation in the next 30 days.

How do I fix CVE-2018-9275?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-9275?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST