{"cve":"CVE-2017-9334","nvd":{"published":"2017-06-01T05:29:00.233","modified":"2026-06-17T01:27:54.433","status":"Modified","description":"An incorrect \"pair?\" check in the Scheme \"length\" procedure results in an unsafe pointer dereference in all CHICKEN Scheme versions prior to 4.13, which allows an attacker to cause a denial of service by passing an improper list to an application that calls \"length\" on it.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-20"],"references":["http://lists.nongnu.org/archive/html/chicken-announce/2017-05/msg00000.html","http://lists.nongnu.org/archive/html/chicken-hackers/2017-05/msg00099.html","http://lists.nongnu.org/archive/html/chicken-announce/2017-05/msg00000.html","http://lists.nongnu.org/archive/html/chicken-hackers/2017-05/msg00099.html"],"products":["call-cc:chicken"],"source":"nvd","synced_at":"2026-10-19T20:43:44.556243339+00:00"},"epss":{"cve":"CVE-2017-9334","score":0.01549,"percentile":0.75075,"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."]}