{"id":"USN-5177-1","summary":"inetutils vulnerability","details":"It was discovered that Inetutils did not properly check the response of\nftp requests. A remote attacker could use this vulnerability to cause a crash\nor run programs in the user machine.\n","modified":"2026-06-29T13:48:39.945678980Z","published":"2022-08-08T15:38:39Z","related":["UBUNTU-CVE-2021-40491"],"upstream":["CVE-2021-40491","UBUNTU-CVE-2021-40491"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5177-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-40491"}],"affected":[{"package":{"name":"inetutils","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/inetutils?arch=source&distro=trusty%2Fesm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.9.2-1ubuntu0.1~esm1"}]}],"versions":["2:1.9.1.306-0a482-1","2:1.9.1.363-bbc1-1","2:1.9.2-1"],"ecosystem_specific":{"binaries":[{"binary_version":"2:1.9.2-1ubuntu0.1~esm1","binary_name":"inetutils-ftp"},{"binary_name":"inetutils-ftpd","binary_version":"2:1.9.2-1ubuntu0.1~esm1"},{"binary_name":"inetutils-inetd","binary_version":"2:1.9.2-1ubuntu0.1~esm1"},{"binary_name":"inetutils-ping","binary_version":"2:1.9.2-1ubuntu0.1~esm1"},{"binary_name":"inetutils-syslogd","binary_version":"2:1.9.2-1ubuntu0.1~esm1"},{"binary_name":"inetutils-talk","binary_version":"2:1.9.2-1ubuntu0.1~esm1"},{"binary_version":"2:1.9.2-1ubuntu0.1~esm1","binary_name":"inetutils-talkd"},{"binary_name":"inetutils-telnet","binary_version":"2:1.9.2-1ubuntu0.1~esm1"},{"binary_name":"inetutils-telnetd","binary_version":"2:1.9.2-1ubuntu0.1~esm1"},{"binary_name":"inetutils-tools","binary_version":"2:1.9.2-1ubuntu0.1~esm1"},{"binary_name":"inetutils-traceroute","binary_version":"2:1.9.2-1ubuntu0.1~esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-40491","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5177-1.json"}},{"package":{"name":"inetutils","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/inetutils?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.9.4-1ubuntu0.1~esm2"}]}],"versions":["2:1.9.4-1","2:1.9.4-1build1","2:1.9.4-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"2:1.9.4-1ubuntu0.1~esm2","binary_name":"inetutils-ftp"},{"binary_version":"2:1.9.4-1ubuntu0.1~esm2","binary_name":"inetutils-ftpd"},{"binary_name":"inetutils-inetd","binary_version":"2:1.9.4-1ubuntu0.1~esm2"},{"binary_name":"inetutils-ping","binary_version":"2:1.9.4-1ubuntu0.1~esm2"},{"binary_name":"inetutils-syslogd","binary_version":"2:1.9.4-1ubuntu0.1~esm2"},{"binary_name":"inetutils-talk","binary_version":"2:1.9.4-1ubuntu0.1~esm2"},{"binary_name":"inetutils-talkd","binary_version":"2:1.9.4-1ubuntu0.1~esm2"},{"binary_name":"inetutils-telnet","binary_version":"2:1.9.4-1ubuntu0.1~esm2"},{"binary_name":"inetutils-telnetd","binary_version":"2:1.9.4-1ubuntu0.1~esm2"},{"binary_name":"inetutils-tools","binary_version":"2:1.9.4-1ubuntu0.1~esm2"},{"binary_name":"inetutils-traceroute","binary_version":"2:1.9.4-1ubuntu0.1~esm2"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"id":"CVE-2021-40491","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5177-1.json"}},{"package":{"name":"inetutils","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/inetutils?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.9.4-3ubuntu0.1+esm1"}]}],"versions":["2:1.9.4-2build1","2:1.9.4-3","2:1.9.4-3ubuntu0.1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"inetutils-ftp","binary_version":"2:1.9.4-3ubuntu0.1+esm1"},{"binary_version":"2:1.9.4-3ubuntu0.1+esm1","binary_name":"inetutils-ftpd"},{"binary_name":"inetutils-inetd","binary_version":"2:1.9.4-3ubuntu0.1+esm1"},{"binary_name":"inetutils-ping","binary_version":"2:1.9.4-3ubuntu0.1+esm1"},{"binary_version":"2:1.9.4-3ubuntu0.1+esm1","binary_name":"inetutils-syslogd"},{"binary_name":"inetutils-talk","binary_version":"2:1.9.4-3ubuntu0.1+esm1"},{"binary_name":"inetutils-talkd","binary_version":"2:1.9.4-3ubuntu0.1+esm1"},{"binary_version":"2:1.9.4-3ubuntu0.1+esm1","binary_name":"inetutils-telnet"},{"binary_name":"inetutils-telnetd","binary_version":"2:1.9.4-3ubuntu0.1+esm1"},{"binary_name":"inetutils-tools","binary_version":"2:1.9.4-3ubuntu0.1+esm1"},{"binary_version":"2:1.9.4-3ubuntu0.1+esm1","binary_name":"inetutils-traceroute"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5177-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-40491"}],"ecosystem":"Ubuntu:Pro:18.04:LTS"}}},{"package":{"name":"inetutils","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/inetutils?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.9.4-11ubuntu0.1+esm1"}]}],"versions":["2:1.9.4-10build1","2:1.9.4-11","2:1.9.4-11ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"inetutils-ftp","binary_version":"2:1.9.4-11ubuntu0.1+esm1"},{"binary_name":"inetutils-ftpd","binary_version":"2:1.9.4-11ubuntu0.1+esm1"},{"binary_version":"2:1.9.4-11ubuntu0.1+esm1","binary_name":"inetutils-inetd"},{"binary_name":"inetutils-ping","binary_version":"2:1.9.4-11ubuntu0.1+esm1"},{"binary_name":"inetutils-syslogd","binary_version":"2:1.9.4-11ubuntu0.1+esm1"},{"binary_name":"inetutils-talk","binary_version":"2:1.9.4-11ubuntu0.1+esm1"},{"binary_name":"inetutils-talkd","binary_version":"2:1.9.4-11ubuntu0.1+esm1"},{"binary_name":"inetutils-telnet","binary_version":"2:1.9.4-11ubuntu0.1+esm1"},{"binary_version":"2:1.9.4-11ubuntu0.1+esm1","binary_name":"inetutils-telnetd"},{"binary_name":"inetutils-tools","binary_version":"2:1.9.4-11ubuntu0.1+esm1"},{"binary_version":"2:1.9.4-11ubuntu0.1+esm1","binary_name":"inetutils-traceroute"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5177-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:20.04:LTS","cves":[{"id":"CVE-2021-40491","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"},{"score":"medium","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.5"}