{"id":"UBUNTU-CVE-2020-9273","details":"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.","modified":"2025-10-24T04:48:20Z","published":"2020-02-20T16:15:00Z","upstream":["CVE-2020-9273"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-9273"},{"type":"REPORT","url":"https://github.com/proftpd/proftpd/issues/903"},{"type":"REPORT","url":"https://github.com/proftpd/proftpd/commit/d388f7904d4c9a6d0ea54237b8b54a57c19d8d49"},{"type":"REPORT","url":"https://github.com/proftpd/proftpd/commit/e845abc1bd86eebec7a0342fded908a1b0f1996b"},{"type":"REPORT","url":"https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-9273"}],"affected":[{"package":{"name":"proftpd-dfsg","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/proftpd-dfsg@1.3.5a-1ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.5-2","1.3.5a-1","1.3.5a-1build1","1.3.5a-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"proftpd-basic","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-dev","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-mod-geoip","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-mod-ldap","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-mod-mysql","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-mod-odbc","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-mod-pgsql","binary_version":"1.3.5a-1ubuntu0.1"},{"binary_name":"proftpd-mod-sqlite","binary_version":"1.3.5a-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-9273.json"}},{"package":{"name":"proftpd-dfsg","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/proftpd-dfsg@1.3.5e-1build1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.5d-1","1.3.5e-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"proftpd-basic","binary_version":"1.3.5e-1build1"},{"binary_name":"proftpd-dev","binary_version":"1.3.5e-1build1"},{"binary_name":"proftpd-mod-geoip","binary_version":"1.3.5e-1build1"},{"binary_name":"proftpd-mod-ldap","binary_version":"1.3.5e-1build1"},{"binary_name":"proftpd-mod-mysql","binary_version":"1.3.5e-1build1"},{"binary_name":"proftpd-mod-odbc","binary_version":"1.3.5e-1build1"},{"binary_name":"proftpd-mod-pgsql","binary_version":"1.3.5e-1build1"},{"binary_name":"proftpd-mod-sqlite","binary_version":"1.3.5e-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-9273.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}