{"cve":"CVE-2011-1175","nvd":{"published":"2011-03-31T22:55:03.223","modified":"2026-06-16T23:28:52.580","status":"Modified","description":"tcptls.c in the TCP/TLS server in Asterisk Open Source 1.6.1.x before 1.6.1.23, 1.6.2.x before 1.6.2.17.1, and 1.8.x before 1.8.3.1 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) by establishing many short TCP sessions to services that use a certain TLS API.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://downloads.asterisk.org/pub/security/AST-2011-004.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056945.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-March/057156.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-March/057163.html","http://openwall.com/lists/oss-security/2011/03/17/5"],"products":["digium:asterisk"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-1175","score":0.02724,"percentile":0.86053,"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."]}