{"cve":"CVE-2013-5641","nvd":{"published":"2013-09-09T17:55:06.237","modified":"2026-06-16T23:59:09.497","status":"Modified","description":"The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.17.x through 1.8.22.x, 1.8.23.x before 1.8.23.1, and 11.x before 11.5.1 and Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2 allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an ACK with SDP to a previously terminated channel.  NOTE: some of these details are obtained from third party information.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://archives.neohapsis.com/archives/bugtraq/2013-08/0175.html","http://downloads.asterisk.org/pub/security/AST-2013-004.html","http://osvdb.org/96691","http://seclists.org/bugtraq/2013/Aug/185","http://secunia.com/advisories/54534"],"products":["digium:asterisk","digium:certified_asterisk"],"source":"nvd","synced_at":"2026-10-19T20:29:16.037019470+00:00"},"epss":{"cve":"CVE-2013-5641","score":0.04111,"percentile":0.90776,"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."]}