Information disclosure in Yubico Pam
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).
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.
EPSS exploit prediction
EPSS: 0.014 (71.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: -0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.opensuse.org/show_bug.cgi (Third Party Advisory, Issue Tracking)
- github.com/Yubico/yubico-pam/commit/0f6ceabab0a8849b47f67d727aa526c2656089ba (Patch)
- github.com/Yubico/yubico-pam/issues/136 (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2018-9275?
- CVE-2018-9275 is a high-severity vulnerability in Yubico Pam, classified under Information Disclosure. CVSS score: 8.2/10. Published 2018-04-04.
- How severe is CVE-2018-9275?
- High severity. CVSS v3 base score is 8.2 out of 10.
- Is CVE-2018-9275 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.