Vulnerability Report

CVE-2018-9275

Title: Yubico Yubico Pam Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2018-9275.

CWE Category CWE-200
Published Date Apr 04, 2018
Modified Date Jun 17, 2026
Exploit Status Not Found
Score 8.2 CVSS v3.0
Exploit Probability (EPSS)
1.47%

Vulnerability Summary

CVE-2018-9275: 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).

Impacted Vendors

Y
yubico 1

Reference Links

https://bugzilla.opensuse.org/show_bug.cgi?id=1088027 https://github.com/Yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089ba https://github.com/Yubico/yubico-pam/issues/136 https://bugzilla.opensuse.org/show_bug.cgi?id=1088027 https://github.com/Yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089ba https://github.com/Yubico/yubico-pam/issues/136
CVSS v3.0
Source Entity [email protected]
Severity HIGH
8.2
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
6.4
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2018-9275 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Affected Stack

No specific products linked.