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{"acknowledgement": "Red Hat would like to thank Sebastien Macke (Trustwave SpiderLabs) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2015:1640", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "pam-0:1.1.1-20.el6_7.1", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2015-08-18T00:00:00Z"}, {"advisory": "RHSA-2015:1640", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "pam-0:1.1.8-12.el7_1.1", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2015-08-18T00:00:00Z"}], "bugzilla": {"description": "pam: DoS/user enumeration due to blocking pipe in pam_unix module", "id": "1228571", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1228571"}, "csaw": false, "cvss": {"cvss_base_score": "6.4", "cvss_scoring_vector": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "status": "verified"}, "cwe": "CWE-833->CWE-203", "details": ["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.", "It was discovered that the _unix_run_helper_binary() function of PAM's unix_pam module could write to a blocking pipe, possibly causing the function to become unresponsive. An attacker able to supply large passwords to the unix_pam module could use this flaw to enumerate valid user accounts, or cause a denial of service on the system."], "name": "CVE-2015-3238", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "pam", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2015-06-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-3238\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-3238"], "threat_severity": "Moderate"}