{"cve":"CVE-2013-5642","nvd":{"published":"2013-09-09T17:55:06.267","modified":"2026-06-16T23:59:09.653","status":"Modified","description":"The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.x before 1.8.23.1, 10.x before 10.12.3, and 11.x before 11.5.1; Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2; and Asterisk Digiumphones 10.x-digiumphones before 10.12.3-digiumphones allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an invalid SDP that defines a media description before the connection description in a SIP request.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://archives.neohapsis.com/archives/bugtraq/2013-08/0174.html","http://downloads.asterisk.org/pub/security/AST-2013-005.html","http://osvdb.org/96690","http://secunia.com/advisories/54534","http://secunia.com/advisories/54617"],"products":["digium:asterisk","digium:asterisk_digiumphones","digium:certified_asterisk"],"source":"nvd","synced_at":"2026-10-19T20:29:16.037019470+00:00"},"epss":{"cve":"CVE-2013-5642","score":0.11653,"percentile":0.96053,"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."]}