{"id":"CVE-2022-42705","aliases":["ALPINE-CVE-2022-42705","DEBIAN-CVE-2022-42705","DLA-3335-1","DSA-5358-1","EUVD-2022-45771","GHSA-89gw-96wv-f4r4","UBUNTU-CVE-2022-42705"],"status":"published","title":"A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9...","description":"A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asterisk (denial of service) by performing activity on a subscription via a reliable transport at the same time that Asterisk is also performing activity on that subscription.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01325,"percentile":0.71357,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-416"],"published":"2022-12-05T00:00:00Z","modified":"2026-11-03T07:18:33Z","fixes":[{"ecosystem":"Alpine:v3.16","package":"asterisk","fixed_in":["18.20.2-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"asterisk","fixed_in":["18.15.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"asterisk","fixed_in":["18.15.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"asterisk","fixed_in":["18.15.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"asterisk","fixed_in":["18.15.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"asterisk","fixed_in":["18.15.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"asterisk","fixed_in":["18.15.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"asterisk","fixed_in":["18.15.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"asterisk","fixed_in":["18.15.1-r0"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"asterisk","fixed_in":["1:20.0.1~dfsg+~cs6.12.40431414-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.16","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"16.0.0"},{"fixed":"18.20.2-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"16.0.0"},{"fixed":"18.15.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"16.0.0"},{"fixed":"18.15.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"16.0.0"},{"fixed":"18.15.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"16.0.0"},{"fixed":"18.15.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"16.0.0"},{"fixed":"18.15.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"16.0.0"},{"fixed":"18.15.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"16.0.0"},{"fixed":"18.15.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"16.0.0"},{"fixed":"18.15.1-r0"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:20.0.1~dfsg+~cs6.12.40431414-1"}]}],"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.dfsg-1","1:1.2.12.1.dfsg-1","1:1.2.13~dfsg-1","1:1.2.13~dfsg-2","1:1.2.13~dfsg-2etch1","1:1.2.13~dfsg-2etch2","1:1.2.13~dfsg-2etch3","1:1.2.13~dfsg-2etch4","1:1.2.14~dfsg-1","1:1.2.14~dfsg-2","1:1.2.14~dfsg-3","1:1.2.14~dfsg-4","1:1.2.15~dfsg-1","1:1.2.16~dfsg-1","1:1.2.17~dfsg-1","1:1.2.4.dfsg-1","1:1.2.4.dfsg-2","1:1.2.4.dfsg-3","1:1.2.4.dfsg-4","1:1.2.4.dfsg-5","1:1.2.4.dfsg-6","1:1.2.4.dfsg-6+b1","1:1.2.4.dfsg-7","1:1.2.7.1.dfsg-1","1:1.2.7.1.dfsg-2","1:1.2.7.1.dfsg-3","1:1.2.9.1.dfsg-1","1:1.4.10~dfsg-1","1:1.4.11~dfsg-1","1:1.4.11~dfsg-2","1:1.4.11~dfsg-3","1:1.4.11~dfsg-4","1:1.4.13~dfsg-1","1:1.4.15~dfsg-1","1:1.4.16.2~dfsg-1","1:1.4.16.2~dfsg-2","1:1.4.17~dfsg-1","1:1.4.17~dfsg-2","1:1.4.18.1~dfsg-1","1:1.4.18~dfsg-1","1:1.4.19.1~dfsg-1","1:1.4.20~dfsg-1","1:1.4.21.1~dfsg-1","1:1.4.21.2~dfsg-1","1:1.4.21.2~dfsg-2","1:1.4.21.2~dfsg-3","1:1.4.21.2~dfsg-3+lenny1","1:1.4.21.2~dfsg-3+lenny2","1:1.4.21.2~dfsg-3+lenny2.1","1:1.4.21.2~dfsg-3+lenny3","1:1.4.21.2~dfsg-3+lenny5","1:1.4.21.2~dfsg-3+lenny6","1:1.4.21.2~dfsg-3.1","1:1.4.2~dfsg-1","1:1.4.2~dfsg-2","1:1.4.2~dfsg-3","1:1.4.2~dfsg-4","1:1.4.2~dfsg-5","1:1.4.3~dfsg-1","1:1.4.4~dfsg-1","1:1.4.4~dfsg-2","1:1.4.4~dfsg-3","1:1.4.5~dfsg-1","1:1.4.6~dfsg-1","1:1.4.8~dfsg-1","1:1.4.8~dfsg-2","1:1.4.9~dfsg-1",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Advisory","web","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/02/msg00029.html","tags":["mailing-list","x_transferred","article"]},{"url":"https://www.debian.org/security/2023/dsa-5358","tags":["vendor-advisory","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-42705","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-89gw-96wv-f4r4"},{"url":"https://security.alpinelinux.org/vuln/CVE-2022-42705","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/42xxx/CVE-2022-42705.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2022-42705","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-42705","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-42705","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2022-42705","description":"A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 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