{"cve":"CVE-2013-4623","nvd":{"published":"2013-09-30T22:55:04.930","modified":"2026-06-16T23:57:37.730","status":"Modified","description":"The x509parse_crt function in x509.h in PolarSSL 1.1.x before 1.1.7 and 1.2.x before 1.2.8 does not properly parse certificate messages during the SSL/TLS handshake, which allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a certificate message that contains a PEM encoded certificate.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115922.html","http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115927.html","http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116351.html","http://www.debian.org/security/2013/dsa-2782","http://www.securityfocus.com/bid/61764"],"products":["polarssl:polarssl"],"source":"nvd","synced_at":"2026-10-19T20:30:15.895642412+00:00"},"epss":{"cve":"CVE-2013-4623","score":0.01887,"percentile":0.79525,"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."]}