{"id":"CVE-2018-12228","aliases":["EUVD-2018-4206","GHSA-wcxf-gxv3-7xch"],"status":"published","title":"An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk...","description":"An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk via TCP/TLS, if the client abruptly disconnects, or sends a specially crafted message, then Asterisk gets caught in an infinite loop while trying to read the data stream. This renders the system unusable.","severity":{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.06462,"percentile":0.93781,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-835"],"published":"2018-06-12T04:00:00Z","modified":"2026-10-24T10:30:54Z","products":[{"vendor":"sangoma","product":"asterisk"}],"references":[{"url":"http://www.securityfocus.com/bid/104457","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://issues.asterisk.org/jira/browse/ASTERISK-27807","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Vendor Advisory","evidence"]},{"url":"http://downloads.asterisk.org/pub/security/AST-2018-007.html","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-12228"},{"url":"https://github.com/advisories/GHSA-wcxf-gxv3-7xch"}],"sources":{"cve":[{"id":"CVE-2018-12228","description":"An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk via TCP/TLS, if the client abruptly disconnects, or sends a specially crafted message, then Asterisk gets caught in an infinite loop while trying to read the data stream. This renders the system unusable.","status":"published","published":"2018-06-12T04:00:00Z","modified":"2024-08-05T08:30:59.711Z","updated_at":"2026-11-02T14:35:06.679212Z"}],"euvd":[{"id":"EUVD-2018-4206","description":"An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk via TCP/TLS, if the client abruptly disconnects, or sends a specially crafted message, then Asterisk gets caught in an infinite loop while trying to read the data stream. This renders the system unusable.","status":"published","published":"2018-06-12T04:00:00Z","modified":"2024-08-05T08:30:59Z","updated_at":"2026-11-03T02:39:53.14558Z"}],"ghsa":[{"id":"GHSA-wcxf-gxv3-7xch","title":"An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk...","description":"An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk via TCP/TLS, if the client abruptly disconnects, or sends a specially crafted message, then Asterisk gets caught in an infinite loop while trying to read the data stream. This renders the system unusable.","status":"published","published":"2022-05-13T01:49:31Z","modified":"2023-02-02T05:01:44Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-835"],"updated_at":"2026-11-02T14:51:15.131458Z"}],"nvd":[{"id":"CVE-2018-12228","description":"An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk via TCP/TLS, if the client abruptly disconnects, or sends a specially crafted message, then Asterisk gets caught in an infinite loop while trying to read the data stream. This renders the system unusable.","status":"published","published":"2018-06-12T04:29:00.33Z","modified":"2026-06-17T01:37:23.29Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-835"],"updated_at":"2026-11-02T14:04:29.837913Z"}],"osv":[{"id":"CVE-2018-12228","description":"An issue was discovered in Asterisk Open Source 15.x before 15.4.1. When connected to Asterisk via TCP/TLS, if the client abruptly disconnects, or sends a specially crafted message, then Asterisk gets caught in an infinite loop while trying to read the data stream. This renders the system unusable.","status":"published","published":"2018-06-12T04:29:00.33Z","modified":"2026-10-24T10:30:54.251603027Z","cvss":[{"version":"3.0","score":6.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:07.934182Z"}]}}