Back
CVE-2011-0411
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…
Medium6.8EPSS 16.3%
- Published
- Updated
- Reserved
- Assigned by
- certcc
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 16.3% · top 3.0% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
Affected products
n/a
- affected n/a
References (24)
- http://www.oracle.com/technetwork/topics/security/cpuapr2011-301950.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- multiple-starttls-command-execution(65932) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- http://www.postfix.org/CVE-2011-0411.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 43646 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- SUSE-SR:2011:009 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 71021 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- ADV-2011-0752 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- ADV-2011-0891 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- GLSA-201206-33 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- FEDORA-2011-3355 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 43874 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- FEDORA-2011-3394 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://www.kb.cert.org/vuls/id/MORO-8ELH6Z (opens in a new tab)x_refsource_CONFIRMx_transferred
- APPLE-SA-2011-10-12-3 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- ADV-2011-0611 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 46767 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2011:0423 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- VU#555316 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 1025179 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- RHSA-2011:0422 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://support.apple.com/kb/HT5002 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-2233 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [oss-security] 20210810 STARTTLS vulnerabilities (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2011-0411)Record last updated .