{"id":"CVE-2020-25269","aliases":["DEBIAN-CVE-2020-25269","DLA-2375-1","DSA-4764-1","EUVD-2020-17957","GHSA-gw5w-x93w-mq79","UBUNTU-CVE-2020-25269","USN-7405-1"],"status":"published","title":"An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains...","description":"An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains a use after free vulnerability. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.","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":"2026-11-11","score":0.02686,"percentile":0.86043,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-416"],"published":"2020-09-11T04:43:32Z","modified":"2026-10-26T12:02:40Z","fixes":[{"ecosystem":"Debian:12","package":"inspircd","fixed_in":["3.8.0-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"inspircd","fixed_in":["3.8.0-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:16.04:LTS","package":"inspircd","fixed_in":["2.0.20-5ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"inspircd","fixed_in":["2.0.24-1ubuntu1+esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:20.04:LTS","package":"inspircd","fixed_in":["3.4.0-2ubuntu1+esm1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"inspircd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8.0-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"inspircd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8.0-1"}]}]},{"source":"osv","ecosystem":"Debian:9","package":"inspircd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.23-2+deb9u1"}]}],"versions":["2.0.23-2"],"bundled":2},{"source":"osv","ecosystem":"Debian:10","package":"inspircd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.27-1+deb10u1"}]}],"versions":["2.0.27-1"],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"inspircd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.20-5ubuntu0.1~esm1"}]}],"versions":["2.0.20-3","2.0.20-4","2.0.20-5","2.0.20-5build1","2.0.20-5build2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"inspircd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.24-1ubuntu1+esm1"}]}],"versions":["2.0.24-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"inspircd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.0-2ubuntu1+esm1"}]}],"versions":["2.0.27-1ubuntu2","3.4.0-2ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"inspircd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.20-5ubuntu0.1~esm1"}]}],"versions":["2.0.20-3","2.0.20-4","2.0.20-5","2.0.20-5build1","2.0.20-5build2"],"bundled":3},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"inspircd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.24-1ubuntu1+esm1"}]}],"versions":["2.0.24-1ubuntu1"],"bundled":3},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"inspircd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.0-2ubuntu1+esm1"}]}],"versions":["2.0.27-1ubuntu2","3.4.0-2ubuntu1"],"bundled":3}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"inspircd","product":"inspircd"}],"references":[{"url":"https://docs.inspircd.org/security/2020-01/","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","report"]},{"url":"https://github.com/inspircd/inspircd/compare/v2.0.28...07d7dea","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/inspircd/inspircd/compare/426d1c8...b3f1db9","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://www.debian.org/security/2020/dsa-4764","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/09/msg00015.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25269"},{"url":"https://github.com/advisories/GHSA-gw5w-x93w-mq79"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-25269","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-25269","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-25269","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7405-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2016-7142","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-20917","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-25269","description":"An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains a use after free vulnerability. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.","status":"published","published":"2020-09-11T04:43:32Z","modified":"2024-08-04T15:33:05.609Z","updated_at":"2026-11-02T14:35:48.52216Z"}],"euvd":[{"id":"EUVD-2020-17957","description":"An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains a use after free vulnerability. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.","status":"published","published":"2020-09-11T04:43:32Z","modified":"2024-08-04T15:33:05Z","updated_at":"2026-11-03T03:07:17.764085Z"}],"ghsa":[{"id":"GHSA-gw5w-x93w-mq79","title":"An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains...","description":"An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains a use after free vulnerability. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.","status":"published","published":"2022-05-24T17:28:10Z","modified":"2023-01-31T05:07:38Z","cvss":[{"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"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:49:15.080722Z"}],"nvd":[{"id":"CVE-2020-25269","description":"An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains a use after free vulnerability. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.","status":"published","published":"2020-09-11T05:15:12.607Z","modified":"2026-06-17T03:06:41.91Z","cvss":[{"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"},{"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-416"],"updated_at":"2026-11-02T14:06:14.981587Z"}],"osv":[{"id":"CVE-2020-25269","description":"An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains a use after free vulnerability. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.","status":"published","published":"2020-09-11T05:15:12.607Z","modified":"2026-10-20T10:52:52.838806153Z","cvss":[{"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"}],"updated_at":"2026-11-02T15:44:15.879068Z"},{"id":"DEBIAN-CVE-2020-25269","description":"An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains a use after free vulnerability. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.","status":"published","published":"2020-09-11T05:15:12.607Z","modified":"2026-10-26T12:02:40.514986383Z","cvss":[{"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"}],"updated_at":"2026-11-02T15:45:33.729655Z"},{"id":"UBUNTU-CVE-2020-25269","description":"An issue was discovered in InspIRCd 2 before 2.0.29 and 3 before 3.6.0. The pgsql module contains a use after free vulnerability. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.","status":"published","published":"2020-09-11T05:15:00Z","modified":"2026-04-22T12:34:37.658311Z","cvss":[{"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"}],"updated_at":"2026-11-02T15:54:23.905183Z"},{"id":"DLA-2375-1","title":"inspircd - security update","status":"published","published":"2020-09-19T00:00:00Z","modified":"2026-03-09T01:20:48.228732Z","updated_at":"2026-11-02T15:46:10.712745Z"},{"id":"DSA-4764-1","title":"inspircd - security update","status":"published","published":"2020-09-18T00:00:00Z","modified":"2026-03-09T02:11:02.650152Z","updated_at":"2026-11-02T15:46:17.19998Z"},{"id":"USN-7405-1","title":"inspircd vulnerabilities","description":"It was discovered that InspIRCd did not correctly handle certificate\nfingerprints, which could lead to spoofing. A remote attacker could\npossibly use this issue to bypass authentication. This issue only affected\nUbuntu 16.04 LTS. (CVE-2016-7142)\n\nIt was discovered that InspIRCd did not correctly handle certain memory\noperations, which could lead to a NULL pointer dereference. A remote\nattacker could possibly use this issue to cause a denial of service. This\nissue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.\n(CVE-2019-20917)\n\nIt was discovered that InspIRCd did not correctly handle certain memory\noperations, which could lead to a use-after-free. A remote attacker could\npossibly use this issue to cause a denial of service. (CVE-2020-25269)\n","status":"published","published":"2025-04-02T05:04:12Z","modified":"2026-06-25T13:32:30.279587496Z","updated_at":"2026-11-02T16:58:19.988474Z"}]}}