{"id":"CVE-2020-9273","aliases":["DEBIAN-CVE-2020-9273","DLA-2115-1","DLA-2115-2","DSA-4635-1","EUVD-2020-30102","GHSA-j879-hg9w-v5qv","MGASA-2020-0120","UBUNTU-CVE-2020-9273","openSUSE-SU-2020:0273-1","openSUSE-SU-2024:11196-1"],"status":"published","title":"In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer...","description":"In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.11823,"percentile":0.96119,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-416"],"published":"2020-02-20T15:22:53Z","modified":"2026-11-01T10:45:21Z","exploits":[{"source":"pocgithub","id":"dukptkey/CVE-2020-9273","title":"dukptkey/CVE-2020-9273","date":"2020-11-05","url":"https://github.com/dukptkey/CVE-2020-9273"}],"fixes":[{"ecosystem":"Debian:12","package":"proftpd-dfsg","fixed_in":["1.3.6c-2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"proftpd-dfsg","fixed_in":["1.3.6c-2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"proftpd-dfsg","fixed_in":["1.3.6c-2"],"sources":["osv"]},{"ecosystem":"Debian:8","package":"proftpd-dfsg","fixed_in":["1.3.5e+r1.3.5-2+deb8u6","1.3.5e+r1.3.5-2+deb8u7"],"sources":["osv"]},{"ecosystem":"Debian:9","package":"proftpd-dfsg","fixed_in":["1.3.5b-4+deb9u4"],"sources":["osv"]},{"ecosystem":"Debian:10","package":"proftpd-dfsg","fixed_in":["1.3.6-4+deb10u4"],"sources":["osv"]},{"ecosystem":"Mageia:7","package":"proftpd","fixed_in":["1.3.5e-4.3.mga7"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.6c-2"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.6c-2"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.6c-2"}]}]},{"source":"osv","ecosystem":"Debian:8","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.5e+r1.3.5-2+deb8u6"}]}],"versions":["1.3.5-1.1","1.3.5-1.1+deb8u1","1.3.5-1.1+deb8u2","1.3.5-2","1.3.5a-1","1.3.5b-1","1.3.5b-2","1.3.5b-3","1.3.5b-4","1.3.5d-1","1.3.5e+r1.3.5-2+deb8u1","1.3.5e+r1.3.5-2+deb8u2","1.3.5e+r1.3.5-2+deb8u3","1.3.5e+r1.3.5-2+deb8u4","1.3.5e+r1.3.5-2+deb8u5","1.3.5e-0+deb8u1","1.3.5e-1"]},{"source":"osv","ecosystem":"Debian:8","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.5e+r1.3.5-2+deb8u7"}]}],"versions":["1.3.5-1.1","1.3.5-1.1+deb8u1","1.3.5-1.1+deb8u2","1.3.5-2","1.3.5a-1","1.3.5b-1","1.3.5b-2","1.3.5b-3","1.3.5b-4","1.3.5d-1","1.3.5e+r1.3.5-2+deb8u1","1.3.5e+r1.3.5-2+deb8u2","1.3.5e+r1.3.5-2+deb8u3","1.3.5e+r1.3.5-2+deb8u4","1.3.5e+r1.3.5-2+deb8u5","1.3.5e+r1.3.5-2+deb8u6","1.3.5e-0+deb8u1","1.3.5e-1"]},{"source":"osv","ecosystem":"Debian:9","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.5b-4+deb9u4"}]}],"versions":["1.3.5b-4","1.3.5b-4+deb9u1","1.3.5b-4+deb9u2","1.3.5b-4+deb9u3"]},{"source":"osv","ecosystem":"Debian:10","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.6-4+deb10u4"}]}],"versions":["1.3.6-4","1.3.6-4+deb10u1","1.3.6-4+deb10u2","1.3.6-4+deb10u3"]},{"source":"osv","ecosystem":"Mageia:7","package":"proftpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.5e-4.3.mga7"}]}]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.5-2","1.3.5a-1","1.3.5a-1build1","1.3.5a-1ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"proftpd-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.5d-1","1.3.5e-1build1"]},{"source":"osv","ecosystem":"SUSE:Package 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Advisory","advisory","report"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/02/msg00022.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://www.debian.org/security/2020/dsa-4635","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHO3S5WPRRP7VGKIAHLYQVEYW5HRYIJN/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VCUPRYSJR7XOM3HQ6H5M4OGDU7OHCHBF/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00002.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2020/03/msg00002.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://security.gentoo.org/glsa/202003-35","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Third Party Advisory","advisory"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-679335.pdf","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2021/08/25/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2021/09/06/2","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9273"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VCUPRYSJR7XOM3HQ6H5M4OGDU7OHCHBF/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XHO3S5WPRRP7VGKIAHLYQVEYW5HRYIJN/"},{"url":"https://github.com/advisories/GHSA-j879-hg9w-v5qv"},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-9273","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2020-0120.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=26251","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-9273","tags":["report"]},{"url":"https://github.com/proftpd/proftpd/commit/d388f7904d4c9a6d0ea54237b8b54a57c19d8d49","tags":["report"]},{"url":"https://github.com/proftpd/proftpd/commit/e845abc1bd86eebec7a0342fded908a1b0f1996b","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-9273","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/NWEO4RUNNDPDSIHIS6CBC7B43G6TT4FO/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1164572","tags":["report"]},{"url":"https://bugzilla.suse.com/1164574","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2020-9272","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-9273","tags":["web"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2006-5815","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-7418","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12815","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-18217","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-19269","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2020-9273","description":"In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.","status":"published","published":"2020-02-20T15:22:53Z","modified":"2024-08-04T10:26:16.038Z","updated_at":"2026-11-02T14:35:49.209579Z"}],"euvd":[{"id":"EUVD-2020-30102","description":"In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.","status":"published","published":"2020-02-20T15:22:53Z","modified":"2024-08-04T10:26:16Z","updated_at":"2026-11-03T03:07:54.599277Z"}],"ghsa":[{"id":"GHSA-j879-hg9w-v5qv","title":"In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer...","description":"In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.","status":"published","published":"2022-05-24T17:09:25Z","modified":"2023-01-29T05:01:46Z","cwes":["CWE-416"],"updated_at":"2026-11-02T14:44:54.429174Z"}],"nvd":[{"id":"CVE-2020-9273","description":"In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.","status":"published","published":"2020-02-20T16:15:11.95Z","modified":"2026-06-17T03:27:40.82Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:05:54.796125Z"}],"osv":[{"id":"CVE-2020-9273","description":"In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.","status":"published","published":"2020-02-20T16:15:11.95Z","modified":"2026-11-09T10:45:27.785981345Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-09T10:53:57.550641Z"},{"id":"DEBIAN-CVE-2020-9273","description":"In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.","status":"published","published":"2020-02-20T16:15:11.95Z","modified":"2026-10-26T12:02:45.288882319Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:34.311861Z"},{"id":"UBUNTU-CVE-2020-9273","description":"In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.","status":"published","published":"2020-02-20T16:15:00Z","modified":"2026-04-22T12:44:41.361876Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:25.728622Z"},{"id":"DLA-2115-1","title":"proftpd-dfsg - security update","status":"published","published":"2020-02-21T00:00:00Z","modified":"2026-03-09T01:21:12.049865Z","updated_at":"2026-11-02T15:46:10.227108Z"},{"id":"DLA-2115-2","title":"proftpd-dfsg - regression update","status":"published","published":"2020-03-02T00:00:00Z","modified":"2026-03-09T01:18:11.188179Z","updated_at":"2026-11-02T15:46:10.227108Z"},{"id":"DSA-4635-1","title":"proftpd-dfsg - security update","status":"published","published":"2020-02-26T00:00:00Z","modified":"2026-03-09T02:11:33.165734Z","updated_at":"2026-11-02T15:46:17.19998Z"},{"id":"MGASA-2020-0120","title":"Updated proftpd packages fix security vulnerability","description":"Updated proftpd packages fix security vulnerability:\n\nAntonio Morales discovered an use-after-free flaw in the memory pool\nallocator in ProFTPD. Interrupting current data transfers can corrupt\nthe ProFTPD memory pool, leading to denial of service, or potentially\nthe execution of arbitrary code (CVE-2020-9273).\n","status":"published","published":"2020-03-06T16:13:58Z","modified":"2026-04-16T04:43:01.235508723Z","updated_at":"2026-11-02T15:49:41.151324Z"},{"id":"openSUSE-SU-2020:0273-1","title":"Security update for proftpd","description":"This update for proftpd fixes the following issues:\n\nproftpd was updated to version 1.3.6c.\n\nSecurity issues fixed:\n\n- CVE-2020-9272: Fixed an out-of-bounds read in mod_cap (bsc#1164572).\n- CVE-2020-9273: Fixed a potential memory corruption caused by an interruption of the data transfer channel (bsc#1164574).\n","status":"published","published":"2020-03-01T17:13:15Z","modified":"2026-02-04T03:17:05.946269Z","updated_at":"2026-11-02T16:58:31.152112Z"},{"id":"openSUSE-SU-2024:11196-1","title":"proftpd-1.3.6e-1.10 on GA media","description":"These are all security issues fixed in the proftpd-1.3.6e-1.10 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:26:25.484191Z","updated_at":"2026-11-02T16:58:34.894275Z"}]}}