{"cve":"CVE-2013-5580","nvd":{"published":"2013-10-01T19:55:09.507","modified":"2026-06-16T23:59:02.890","status":"Modified","description":"The (1) Conn_StartLogin and (2) cb_Read_Resolver_Result functions in conn.c in ngIRCd 18 through 20.2, when the configuration option NoticeAuth is enabled, does not properly handle the return code for the Handle_Write function, which allows remote attackers to cause a denial of service (assertion failure and server crash) via unspecified vectors, related to a \"notice auth\" message not being sent to a new client.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd.git%3Ba=commit%3Bh=309122017ebc6fff039a7cab1b82f632853d82d5","http://arthur.barton.de/pipermail/ngircd-ml/2013-August/000645.html","http://freecode.com/projects/ngircd/releases/357245","http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115047.html","http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115077.html"],"products":["barton:ngircd"],"source":"nvd","synced_at":"2026-10-19T20:30:15.895642412+00:00"},"epss":{"cve":"CVE-2013-5580","score":0.02322,"percentile":0.83476,"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."]}