{"id":"CVE-2013-5642","url":"https://www.cyber-defence.io/tools/cve/CVE-2013-5642","generatedAt":"2026-11-05T07:25:05.435Z","title":"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…","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.","published":"2013-09-09T17:55:06.000Z","lastModified":"2026-06-16T23:59:10.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":5,"severity":"MEDIUM","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P"},"cwe":["CWE-20"],"affected":["digium/asterisk","digium/asterisk digiumphones","digium/certified asterisk"],"epss":{"score":0.11653,"percentile":0.96065,"date":"2026-11-04","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 11.7%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://archives.neohapsis.com/archives/bugtraq/2013-08/0174.html","source":"cve@mitre.org"},{"url":"http://downloads.asterisk.org/pub/security/AST-2013-005.html","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://osvdb.org/96690","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/54534","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/54617","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2013/dsa-2749","source":"cve@mitre.org"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2013:223","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/62022","source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1028957","source":"cve@mitre.org"},{"url":"https://issues.asterisk.org/jira/browse/ASTERISK-22007","source":"cve@mitre.org"},{"url":"http://archives.neohapsis.com/archives/bugtraq/2013-08/0174.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://downloads.asterisk.org/pub/security/AST-2013-005.html","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://osvdb.org/96690","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/54534","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/54617","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2013/dsa-2749","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2013:223","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/62022","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1028957","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://issues.asterisk.org/jira/browse/ASTERISK-22007","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2013-5642","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}