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.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-2233-1 postfix security update
Debian DSA Debian DSA DSA-2346-1 proftpd-dfsg security update
Ubuntu USN Ubuntu USN USN-1113-1 Postfix vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published:

Updated: 2024-08-06T21:51:08.944Z

Reserved: 2011-01-11T00:00:00.000Z

Link: CVE-2011-0411

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2011-03-16T22:55:02.717

Modified: 2025-04-11T00:51:21.963

Link: CVE-2011-0411

cve-icon Redhat

Severity : Moderate

Publid Date: 2011-03-05T00:00:00Z

Links: CVE-2011-0411 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses