{"id":"CVE-2021-32558","aliases":["ALPINE-CVE-2021-32558","DEBIAN-CVE-2021-32558","DLA-2729-1","DSA-4999-1","EUVD-2021-19403","GHSA-xhjf-mf8w-q63p","UBUNTU-CVE-2021-32558"],"status":"published","title":"An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before...","description":"An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.09223,"percentile":0.95419,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-74"],"published":"2021-07-27T05:19:34Z","modified":"2026-10-24T10:30:42Z","fixes":[{"ecosystem":"Alpine:v3.11","package":"asterisk","fixed_in":["16.6.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"asterisk","fixed_in":["16.16.1-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"asterisk","fixed_in":["18.2.1-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"asterisk","fixed_in":["18.2.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"asterisk","fixed_in":["18.2.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"asterisk","fixed_in":["18.2.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"asterisk","fixed_in":["18.2.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"asterisk","fixed_in":["18.2.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"asterisk","fixed_in":["18.2.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"asterisk","fixed_in":["18.2.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"asterisk","fixed_in":["18.2.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"asterisk","fixed_in":["18.2.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"asterisk","fixed_in":["18.2.2-r2"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"asterisk","fixed_in":["18.2.2-r2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"asterisk","fixed_in":["1:16.16.1~dfsg-2"],"sources":["osv"]},{"ecosystem":"Debian:9","package":"asterisk","fixed_in":["1:13.14.1~dfsg-2+deb9u5"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.11","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"16.6.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.12","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"16.16.1-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.13","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"18.2.1-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.14","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"18.2.2-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"18.2.2-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"18.2.2-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"18.2.2-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"18.2.2-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"18.2.2-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"18.2.2-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"18.2.2-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"18.2.2-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"18.2.2-r2"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13.0.0"},{"fixed":"18.2.2-r2"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:16.16.1~dfsg-2"}]}],"versions":["0.1.11-3","0.1.11-3woody1","1:1.0.5-2","1:1.0.5-4","1:1.0.6-1","1:1.0.6-2","1:1.0.7-1","1:1.0.7.dfsg.1-1","1:1.0.7.dfsg.1-2","1:1.0.7.dfsg.1-2sarge1","1:1.0.7.dfsg.1-2sarge2","1:1.0.7.dfsg.1-2sarge3","1:1.0.7.dfsg.1-2sarge4","1:1.0.7.dfsg.1-2sarge5","1:1.0.7.dfsg.1-2sarge6","1:1.0.9.dfsg-1","1:1.0.9.dfsg-3","1:1.0.9.dfsg-4","1:1.0.9.dfsg-5","1:1.0.9.dfsg-6","1:1.2.0-beta1.dfsg-1","1:1.2.0-beta2.dfsg-1","1:1.2.0-beta2.dfsg-2","1:1.2.0-beta2.dfsg-3","1:1.2.0-rc1.dfsg-1","1:1.2.0-rc2.dfsg-1","1:1.2.0.dfsg-1","1:1.2.0.dfsg-2","1:1.2.0.dfsg-3","1:1.2.0.dfsg-4","1:1.2.0.dfsg-5","1:1.2.0.dfsg-6","1:1.2.1.dfsg-1","1:1.2.1.dfsg-2","1:1.2.1.dfsg-3","1:1.2.10.dfsg-1","1:1.2.10.dfsg-1bpo1","1:1.2.10.dfsg-2","1:1.2.10.dfsg-3","1:1.2.11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List","Patch","Third Party Advisory","fix"]},{"url":"http://packetstormsecurity.com/files/163639/Asterisk-Project-Security-Advisory-AST-2021-008.html","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","VDB Entry","fix"]},{"url":"https://downloads.asterisk.org/pub/security/AST-2021-008.html","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","fix","report"]},{"url":"https://issues.asterisk.org/jira/browse/ASTERISK-29392","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Vendor Advisory","fix"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/08/msg00005.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://www.debian.org/security/2021/dsa-4999","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32558"},{"url":"https://github.com/advisories/GHSA-xhjf-mf8w-q63p"},{"url":"https://security.alpinelinux.org/vuln/CVE-2021-32558","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-32558","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-32558","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-32558","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-32558","description":"An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.","status":"published","published":"2021-07-27T05:19:34Z","modified":"2024-08-03T23:25:30.855Z","updated_at":"2026-11-02T14:33:07.014772Z"}],"euvd":[{"id":"EUVD-2021-19403","description":"An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.","status":"published","published":"2021-07-27T05:19:34Z","modified":"2024-08-03T23:25:30Z","updated_at":"2026-11-03T03:24:36.41075Z"}],"ghsa":[{"id":"GHSA-xhjf-mf8w-q63p","title":"An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before...","description":"An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.","status":"published","published":"2022-05-24T19:09:23Z","modified":"2023-01-30T05:01:11Z","cwes":["CWE-74"],"updated_at":"2026-11-02T14:46:21.093669Z"}],"nvd":[{"id":"CVE-2021-32558","description":"An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.","status":"published","published":"2021-07-30T14:15:16.91Z","modified":"2026-06-17T03:53:10.447Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:06:56.185362Z"}],"osv":[{"id":"ALPINE-CVE-2021-32558","description":"An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.","status":"published","published":"2021-07-30T14:15:16.91Z","modified":"2026-10-23T17:17:56.187442274Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:48.646074Z"},{"id":"CVE-2021-32558","description":"An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.","status":"published","published":"2021-07-30T14:15:16.91Z","modified":"2026-10-24T10:30:42.038248987Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:19.793849Z"},{"id":"DEBIAN-CVE-2021-32558","description":"An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.","status":"published","published":"2021-07-30T14:15:16.91Z","modified":"2026-10-23T18:05:22.75505641Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:35.233346Z"},{"id":"UBUNTU-CVE-2021-32558","description":"An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.","status":"published","published":"2021-07-30T14:15:00Z","modified":"2026-10-17T12:55:46.943230949Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:27.332852Z"},{"id":"DLA-2729-1","title":"asterisk - security update","status":"published","published":"2021-08-04T00:00:00Z","modified":"2026-03-09T01:21:50.598765Z","updated_at":"2026-11-02T15:46:10.712745Z"},{"id":"DSA-4999-1","title":"asterisk - security update","status":"published","published":"2021-11-01T00:00:00Z","modified":"2026-03-09T02:08:59.456466Z","updated_at":"2026-11-02T15:46:17.543497Z"}]}}