CVE-2018-9275 Information

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).

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

HIGH

Base Severity

8.2