High severity · published Apr 4, 2018
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…
8.2
CVSS
1.4%
EPSS
No
On KEV
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
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 73% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
YP
Yubico Pam · Yubico
2.18 through 2.25 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-9275
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-9275
Issue Tracking
https://bugzilla.opensuse.org/show_bug.cgi?id=1088027
Patch
https://github.com/Yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089ba
Issue Tracking
https://github.com/Yubico/yubico-pam/issues/136