{"cve":"CVE-2015-3238","nvd":{"published":"2015-08-24T14:59:04.010","modified":"2026-06-17T00:25:35.967","status":"Modified","description":"The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable to directly access passwords, allows local users to enumerate usernames or cause a denial of service (hang) via a large password.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","score":6.5},"cwes":["CWE-200"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161350.html","http://lists.fedoraproject.org/pipermail/package-announce/2015-June/161249.html","http://rhn.redhat.com/errata/RHSA-2015-1640.html","http://www.openwall.com/lists/oss-security/2015/06/25/13","http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html"],"products":["linux-pam:linux-pam","oracle:sparc-opl_service_processor"],"source":"nvd","synced_at":"2026-10-19T20:37:45.466985407+00:00"},"epss":{"cve":"CVE-2015-3238","score":0.02705,"percentile":0.85955,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}