Vulnerability Monitor

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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).

Published

2018-04-04T18:29:02.497

Last Modified

2024-11-21T04:15:16.520

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 8.2 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

4.9

Weaknesses

Type: Primary
CWE-200

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	yubico	yubico_pam	≤ 2.25	Yes

References

https://bugzilla.opensuse.org/show_bug.cgi?id=1088027 Issue Tracking, Third Party Advisory ([email protected])
https://github.com/Yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089ba Patch ([email protected])
https://github.com/Yubico/yubico-pam/issues/136 Issue Tracking, Third Party Advisory ([email protected])
https://bugzilla.opensuse.org/show_bug.cgi?id=1088027 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/Yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089ba Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/Yubico/yubico-pam/issues/136 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)