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ubuntucveUbuntu.comUB:CVE-2014-3556
HistoryDec 29, 2014 - 12:00 a.m.

CVE-2014-3556

2014-12-2900:00:00
ubuntu.com
ubuntu.com
11

0.002 Low

EPSS

Percentile

52.9%

The STARTTLS implementation in mail/ngx_mail_smtp_handler.c in the SMTP
proxy in nginx 1.5.x and 1.6.x before 1.6.1 and 1.7.x before 1.7.4 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, a similar issue to CVE-2011-0411.

Bugs

Notes

Author Note
mdeslaur per Debian, only affects 1.5.6 to 1.7.3