{"id":"CVE-2022-24793","aliases":["ALPINE-CVE-2022-24793","DEBIAN-CVE-2022-24793","DLA-3036-1","DLA-3194-1","DLA-3549-1","DLA-3887-1","DSA-5285-1","EUVD-2022-29601","GHSA-p6g5-v97c-w5q4","UBUNTU-CVE-2022-24793","USN-6422-1"],"status":"published","title":"Potential heap buffer overflow when parsing DNS packets in PJSIP","description":"PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The difference is that this issue is in parsing the query record `parse_rr()`, while the issue in CVE-2023-27585 is in `parse_query()`. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead.","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":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.02176,"percentile":0.8256,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-120"],"published":"2022-04-06T00:00:00Z","modified":"2026-11-03T08:02:13Z","fixes":[{"ecosystem":"Alpine:v3.16","package":"pjproject","fixed_in":["2.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"pjproject","fixed_in":["2.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"pjproject","fixed_in":["2.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"pjproject","fixed_in":["2.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"pjproject","fixed_in":["2.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"pjproject","fixed_in":["2.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"pjproject","fixed_in":["2.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"pjproject","fixed_in":["2.12.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"pjproject","fixed_in":["2.12.1-r0"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"asterisk","fixed_in":["1:18.14.0~~rc1~dfsg+~cs6.12.40431414-1"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"ring","fixed_in":["20230206.0~ds1-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"ring","fixed_in":["20180228.1.503da2b~ds1-1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"ring","fixed_in":["20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.16","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"pjproject","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.12.1-r0"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"asterisk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:18.14.0~~rc1~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.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Party Advisory","advisory","report"]},{"url":"https://github.com/pjsip/pjproject/commit/9fae8f43accef8ea65d4a8ae9cdf297c46cfe29a","tags":["x_transferred","Patch","Third Party Advisory","fix","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/05/msg00047.html","tags":["mailing-list","x_transferred","Mailing List","Third Party Advisory","article"]},{"url":"https://security.gentoo.org/glsa/202210-37","tags":["vendor-advisory","x_transferred","Third Party Advisory","advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html","tags":["mailing-list","x_transferred","Mailing List","Third Party Advisory","article"]},{"url":"https://www.debian.org/security/2022/dsa-5285","tags":["vendor-advisory","x_transferred","Third Party Advisory","advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html","tags":["mailing-list","x_transferred","article"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/09/msg00030.html","tags":["web"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2022-24793","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/24xxx/CVE-2022-24793.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-24793","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2022-24793","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2022-24793","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-6422-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-24793","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-37706","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-43299","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-43300","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-43301","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-43302","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-43303","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-43804","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-43845","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-21722","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-21723","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-23537","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-23547","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-23608","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-24754","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-24763","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-24764","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-31031","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2022-39244","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2023-27585","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2022-24793","title":"Potential heap buffer overflow when parsing DNS packets in PJSIP","description":"PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The difference is that this issue is in parsing the query record `parse_rr()`, while the issue in CVE-2023-27585 is in `parse_query()`. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead.","status":"published","published":"2022-04-06T00:00:00Z","modified":"2025-11-04T16:09:38.646Z","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":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:34:34.576287Z"}],"euvd":[{"id":"EUVD-2022-29601","description":"PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The difference is that this issue is in parsing the query record `parse_rr()`, while the issue in CVE-2023-27585 is in `parse_query()`. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead.","status":"published","published":"2022-04-06T00:00:00Z","modified":"2025-11-04T16:09:38Z","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":"2026-11-02T19:49:29.391161Z"}],"nvd":[{"id":"CVE-2022-24793","description":"PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The difference is that this issue is in parsing the query record `parse_rr()`, while the issue in CVE-2023-27585 is in `parse_query()`. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead.","status":"published","published":"2022-04-06T14:15:08.087Z","modified":"2026-06-17T04:32:31.91Z","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":"secondary"},{"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":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:14.706146Z"}],"osv":[{"id":"ALPINE-CVE-2022-24793","description":"PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The difference is that this issue is in parsing the query record `parse_rr()`, while the issue in CVE-2023-27585 is in `parse_query()`. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead.","status":"published","published":"2022-04-06T14:15:08.087Z","modified":"2026-11-03T07:18:33.124533711Z","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":"2026-11-03T07:51:12.284675Z"},{"id":"CVE-2022-24793","title":"Potential heap buffer overflow when parsing DNS packets in PJSIP","description":"PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The difference is that this issue is in parsing the query record `parse_rr()`, while the issue in CVE-2023-27585 is in `parse_query()`. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead.","status":"published","published":"2022-04-06T00:00:00Z","modified":"2026-10-28T10:27:52.253958678Z","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"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T15:44:24.428403Z"},{"id":"DEBIAN-CVE-2022-24793","description":"PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The difference is that this issue is in parsing the query record `parse_rr()`, while the issue in CVE-2023-27585 is in `parse_query()`. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead.","status":"published","published":"2022-04-06T14:15:08.087Z","modified":"2026-11-03T08:02:13.377942732Z","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":"2026-11-03T08:24:50.542442Z"},{"id":"UBUNTU-CVE-2022-24793","description":"PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.12 and prior affects applications that use PJSIP DNS resolution. It doesn't affect PJSIP users who utilize an external resolver. This vulnerability is related to CVE-2023-27585. The difference is that this issue is in parsing the query record `parse_rr()`, while the issue in CVE-2023-27585 is in `parse_query()`. A patch is available in the `master` branch of the `pjsip/pjproject` GitHub repository. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver instead.","status":"published","published":"2022-04-06T14:15:00Z","modified":"2026-04-22T13:18:30.173664Z","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"},{"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":"2026-11-02T16:53:53.13624Z"},{"id":"DLA-3036-1","title":"pjproject - security update","status":"published","published":"2022-05-31T00:00:00Z","modified":"2026-03-09T01:21:05.352Z","updated_at":"2026-11-02T15:46:11.189256Z"},{"id":"DLA-3194-1","title":"asterisk - security update","status":"published","published":"2022-11-17T00:00:00Z","modified":"2026-03-09T01:21:37.915359Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"DLA-3549-1","title":"ring - security update","status":"published","published":"2023-08-29T00:00:00Z","modified":"2026-03-09T01:19:27.113198Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"DLA-3887-1","title":"ring - security update","status":"published","published":"2024-09-14T00:00:00Z","modified":"2026-03-09T01:22:59.027543Z","updated_at":"2026-11-02T15:46:12.203458Z"},{"id":"DSA-5285-1","title":"asterisk - security update","status":"published","published":"2022-11-17T00:00:00Z","modified":"2026-03-09T02:08:39.330243Z","updated_at":"2026-11-02T15:46:17.543497Z"},{"id":"USN-6422-1","title":"ring vulnerabilities","description":"\nIt was discovered that Ring incorrectly handled certain inputs. If a user or\nan automated system were tricked into opening a specially crafted input file,\na remote attacker could possibly use this issue to execute arbitrary code.\n(CVE-2021-37706)\n\nIt was discovered that Ring incorrectly handled certain inputs. If a user or\nan automated system were tricked into opening a specially crafted input file,\na remote attacker could possibly use this issue to cause a denial of service.\nThis issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. \n(CVE-2021-43299, CVE-2021-43300, CVE-2021-43301, CVE-2021-43302, \nCVE-2021-43303, CVE-2021-43804, CVE-2021-43845, CVE-2022-21723, \nCVE-2022-23537, CVE-2022-23547, CVE-2022-23608, CVE-2022-24754,\nCVE-2022-24763, CVE-2022-24764, CVE-2022-24793, CVE-2022-31031,\nCVE-2022-39244)\n\nIt was discovered that Ring incorrectly handled certain inputs. If a user or\nan automated system were tricked into opening a specially crafted input file,\na remote attacker could possibly use this issue to cause a denial of service.\nThis issue only affected Ubuntu 20.04 LTS. (CVE-2022-21722)\n\nIt was discovered that Ring incorrectly handled certain inputs. If a user or\nan automated system were tricked into opening a specially crafted input file,\na remote attacker could possibly use this issue to cause a denial of service.\n(CVE-2023-27585)\n","status":"published","published":"2023-10-09T15:09:52Z","modified":"2026-04-27T17:02:16.871002419Z","updated_at":"2026-11-02T16:58:17.305935Z"}]}}