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.
CVSS Metrics
- Vector
- AV:N/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- network
- Access Cmplx
- medium
- Auth
- none
- Confidentiality
- partial
- Integrity
- partial
- Availability
- partial
- Weaknesses
- CWE-264
Metadata
- Primary Vendor
- POSTFIX
- Published
- 3/16/2011
- Last Modified
- 4/11/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
postfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfixpostfix : postfix
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