{"id":"CVE-2011-0411","aliases":["DEBIAN-CVE-2011-0411","DSA-2233-1","EUVD-2011-0437","GHSA-2gf2-4wwm-4cm6","RHSA-2011:0422","RHSA-2011:0423","openSUSE-SU-2024:10318-1"],"status":"published","title":"The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6...","description":"The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack.","severity":{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.16334,"percentile":0.96982,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-264"],"published":"2011-03-16T22:00:00Z","modified":"2026-10-23T17:47:45Z","fixes":[{"ecosystem":"Debian:12","package":"postfix","fixed_in":["2.8.0-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"postfix","fixed_in":["2.8.0-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"postfix","fixed_in":["2.8.0-1"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::client","package":"postfix","fixed_in":["2:2.6.6-2.1.el6_0"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::client","package":"postfix-debuginfo","fixed_in":["2:2.6.6-2.1.el6_0"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::client","package":"postfix-perl-scripts","fixed_in":["2:2.6.6-2.1.el6_0"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"postfix","fixed_in":["2:2.6.6-2.1.el6_0"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"postfix-debuginfo","fixed_in":["2:2.6.6-2.1.el6_0"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"postfix-perl-scripts","fixed_in":["2:2.6.6-2.1.el6_0"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::server","package":"postfix","fixed_in":["2:2.6.6-2.1.el6_0"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::server","package":"postfix-debuginfo","fixed_in":["2:2.6.6-2.1.el6_0"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::server","package":"postfix-perl-scripts","fixed_in":["2:2.6.6-2.1.el6_0"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"postfix","fixed_in":["2:2.6.6-2.1.el6_0"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"postfix-debuginfo","fixed_in":["2:2.6.6-2.1.el6_0"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"postfix-perl-scripts","fixed_in":["2:2.6.6-2.1.el6_0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.0-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.0-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.0-1"}]}]},{"source":"osv","ecosystem":"Debian:5.0","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.5-1.1+lenny1"}]}],"versions":["2.5.5-1.1"],"bundled":2},{"source":"osv","ecosystem":"Debian:6.0","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.1-1+squeeze1"}]}],"versions":["2.7.1-1"],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::as","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.10-1.4.el4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::as","package":"postfix-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.10-1.4.el4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::as","package":"postfix-pflogsumm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.10-1.4.el4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::desktop","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.10-1.4.el4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::desktop","package":"postfix-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.10-1.4.el4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::desktop","package":"postfix-pflogsumm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.10-1.4.el4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::es","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.10-1.4.el4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::es","package":"postfix-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.10-1.4.el4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::es","package":"postfix-pflogsumm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.10-1.4.el4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::ws","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.10-1.4.el4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::ws","package":"postfix-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.10-1.4.el4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:4::ws","package":"postfix-pflogsumm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.2.10-1.4.el4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.3.3-2.2.el5_6"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"postfix-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.3.3-2.2.el5_6"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"postfix-pflogsumm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.3.3-2.2.el5_6"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6.6-2.1.el6_0"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"postfix-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6.6-2.1.el6_0"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"postfix-perl-scripts","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6.6-2.1.el6_0"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6.6-2.1.el6_0"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"postfix-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6.6-2.1.el6_0"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"postfix-perl-scripts","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6.6-2.1.el6_0"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6.6-2.1.el6_0"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"postfix-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6.6-2.1.el6_0"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"postfix-perl-scripts","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6.6-2.1.el6_0"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"postfix","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6.6-2.1.el6_0"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"postfix-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6.6-2.1.el6_0"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"postfix-perl-scripts","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.6.6-2.1.el6_0"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"pure-ftpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.43-1.3"}]}],"bundled":2}],"products":[{"vendor":"postfix","product":"postfix"}],"references":[{"url":"http://www.oracle.com/technetwork/topics/security/cpuapr2011-301950.html","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/65932","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://www.postfix.org/CVE-2011-0411.html","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Vendor Advisory","advisory","evidence"]},{"url":"http://secunia.com/advisories/43646","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://www.osvdb.org/71021","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","web"]},{"url":"http://www.vupen.com/english/advisories/2011/0752","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.vupen.com/english/advisories/2011/0891","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://security.gentoo.org/glsa/glsa-201206-33.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","advisory"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056560.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://secunia.com/advisories/43874","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056559.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://www.kb.cert.org/vuls/id/MORO-8ELH6Z","tags":["x_refsource_CONFIRM","x_transferred","US Government Resource","web"]},{"url":"http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","web"]},{"url":"http://www.vupen.com/english/advisories/2011/0611","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.securityfocus.com/bid/46767","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://www.redhat.com/support/errata/RHSA-2011-0423.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","web"]},{"url":"http://www.kb.cert.org/vuls/id/555316","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource","web"]},{"url":"http://securitytracker.com/id?1025179","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","web"]},{"url":"http://www.redhat.com/support/errata/RHSA-2011-0422.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","web"]},{"url":"http://support.apple.com/kb/HT5002","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10705","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://www.debian.org/security/2011/dsa-2233","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2021/08/10/2","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-0411","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2gf2-4wwm-4cm6"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-0411","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2011:0422","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=456347","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=674814","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2011/rhsa-2011_0422.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2008-2937","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2008-2937","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2008-2937","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2011-0411","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2011-0411","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2011:0423","tags":["advisory"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2011/rhsa-2011_0423.json","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0411","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0418","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2011-0411","description":"The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack.","status":"published","published":"2011-03-16T22:00:00Z","modified":"2024-08-06T21:51:08.944Z","updated_at":"2026-11-02T14:35:39.079595Z"}],"euvd":[{"id":"EUVD-2011-0437","description":"The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack.","status":"published","published":"2011-03-16T22:00:00Z","modified":"2024-08-06T21:51:08Z","updated_at":"2026-11-03T01:56:00.564642Z"}],"ghsa":[{"id":"GHSA-2gf2-4wwm-4cm6","title":"The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6...","description":"The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack.","status":"published","published":"2022-05-13T01:07:08Z","modified":"2023-02-01T05:03:06Z","updated_at":"2026-11-02T14:50:01.019018Z"}],"nvd":[{"id":"CVE-2011-0411","description":"The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack.","status":"published","published":"2011-03-16T22:55:02.717Z","modified":"2026-06-16T23:27:18.35Z","cvss":[{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:07.221228Z"}],"osv":[{"id":"CVE-2011-0411","description":"The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack.","status":"published","published":"2011-03-16T22:55:02Z","modified":"2026-04-10T03:41:36.094452Z","updated_at":"2026-11-02T15:43:57.991581Z"},{"id":"DEBIAN-CVE-2011-0411","description":"The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related to a \"plaintext command injection\" attack.","status":"published","published":"2011-03-16T22:55:02.717Z","modified":"2026-10-23T17:47:45.806831267Z","updated_at":"2026-11-02T15:45:24.316685Z"},{"id":"DSA-2233-1","title":"postfix - several","status":"published","published":"2011-05-10T00:00:00Z","modified":"2026-03-09T01:19:51.890307Z","updated_at":"2026-11-02T15:46:15.108335Z"},{"id":"openSUSE-SU-2024:10318-1","title":"pure-ftpd-1.0.43-1.3 on GA media","description":"These are all security issues fixed in the pure-ftpd-1.0.43-1.3 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:51:11.705763Z","updated_at":"2026-11-02T16:58:33.135986Z"},{"id":"RHSA-2011:0422","title":"Red Hat Security Advisory: postfix security update","status":"published","published":"2024-09-15T19:02:02Z","modified":"2026-06-26T10:15:50Z","updated_at":"2026-11-02T15:53:01.003286Z"},{"id":"RHSA-2011:0423","title":"Red Hat Security Advisory: postfix security update","status":"published","published":"2024-09-15T19:02:07Z","modified":"2026-06-26T10:15:51Z","updated_at":"2026-11-02T15:53:01.003286Z"}]}}
