Information Exposure Affecting yubico-pam package, versions <2.26-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.42% (72nd percentile)

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  • Snyk IDSNYK-DEBIAN14-YUBICOPAM-11775299
  • published10 Aug 2025
  • disclosed4 Apr 2018

Introduced: 4 Apr 2018

CVE-2018-9275  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Debian:14 yubico-pam to version 2.26-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream yubico-pam package and not the yubico-pam package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

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).