Unrated severityNVD Advisory· Published Mar 16, 2011· Updated Apr 29, 2026
CVE-2011-0411
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.
Affected products
42cpe:2.3:a:postfix:postfix:2.6.6:*:*:*:*:*:*:*+ 41 more
- cpe:2.3:a:postfix:postfix:2.6.6:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.3:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.4:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.5:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.6:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.7:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.8:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.9:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.10:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.11:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.12:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.13:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.14:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.4.15:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.5.0:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.5.3:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.5.4:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.5.5:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.5.6:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.5.7:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.5.8:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.5.9:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.5.10:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.5.11:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.6:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.6.4:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.6.5:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.6.7:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.6.8:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.7.1:*:*:*:*:*:*:*
- cpe:2.3:a:postfix:postfix:2.7.2:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
24- www.postfix.org/CVE-2011-0411.htmlnvdExploitVendor Advisory
- secunia.com/advisories/43646nvdVendor Advisory
- www.vupen.com/english/advisories/2011/0611nvdVendor Advisory
- www.kb.cert.org/vuls/id/555316nvdUS Government Resource
- www.kb.cert.org/vuls/id/MORO-8ELH6ZnvdUS Government Resource
- kb.juniper.net/InfoCenter/indexnvd
- lists.apple.com/archives/Security-announce/2011//Oct/msg00003.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2011-March/056559.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2011-March/056560.htmlnvd
- lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.htmlnvd
- secunia.com/advisories/43874nvd
- security.gentoo.org/glsa/glsa-201206-33.xmlnvd
- securitytracker.com/idnvd
- support.apple.com/kb/HT5002nvd
- www.debian.org/security/2011/dsa-2233nvd
- www.openwall.com/lists/oss-security/2021/08/10/2nvd
- www.oracle.com/technetwork/topics/security/cpuapr2011-301950.htmlnvd
- www.osvdb.org/71021nvd
- www.redhat.com/support/errata/RHSA-2011-0422.htmlnvd
- www.redhat.com/support/errata/RHSA-2011-0423.htmlnvd
- www.securityfocus.com/bid/46767nvd
- www.vupen.com/english/advisories/2011/0752nvd
- www.vupen.com/english/advisories/2011/0891nvd
- exchange.xforce.ibmcloud.com/vulnerabilities/65932nvd
News mentions
0No linked articles in our index yet.