6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.011 Low
EPSS
Percentile
84.5%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | postfix | < 2.8.0-1 | postfix_2.8.0-1_all.deb |
Debian | 11 | all | postfix | < 2.8.0-1 | postfix_2.8.0-1_all.deb |
Debian | 10 | all | postfix | < 2.8.0-1 | postfix_2.8.0-1_all.deb |
Debian | 999 | all | postfix | < 2.8.0-1 | postfix_2.8.0-1_all.deb |
Debian | 13 | all | postfix | < 2.8.0-1 | postfix_2.8.0-1_all.deb |