CVE-2014-3556

Publication date 29 December 2014

Last updated 24 July 2024


Ubuntu priority

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
nginx 14.04 LTS trusty
Not affected
12.04 LTS precise
Not affected
10.04 LTS lucid Ignored end of life

Notes


mdeslaur

per Debian, only affects 1.5.6 to 1.7.3