{"cve":"CVE-2013-5018","nvd":{"published":"2013-08-28T23:55:10.650","modified":"2026-06-16T23:58:15.530","status":"Modified","description":"The is_asn1 function in strongSwan 4.1.11 through 5.0.4 does not properly validate the return value of the asn1_length function, which allows remote attackers to cause a denial of service (segmentation fault) via a (1) XAuth username, (2) EAP identity, or (3) PEM encoded file that starts with a 0x04, 0x30, or 0x31 character followed by an ASN.1 length value that triggers an integer overflow.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://lists.opensuse.org/opensuse-updates/2013-08/msg00021.html","http://lists.opensuse.org/opensuse-updates/2013-08/msg00022.html","http://lists.opensuse.org/opensuse-updates/2013-08/msg00050.html","http://secunia.com/advisories/54315","http://secunia.com/advisories/54524"],"products":["opensuse:opensuse","strongswan:strongswan"],"source":"nvd","synced_at":"2026-10-19T20:29:16.037019470+00:00"},"epss":{"cve":"CVE-2013-5018","score":0.02985,"percentile":0.87305,"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."]}