VDB
CVE-2014-3556
CVE-2014-3556
REJECTED
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.
EPSS 48.17% · 97.8th percentile
Risk Scores
EPSS Score
48.17%
97.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:14.04:LTS | nginx | 0, 1.4.1-3ubuntu1, 1.4.3-2ubuntu1 |
Exploit Intelligence
- HPSBOV03227 (circl)
- https://bugzilla.redhat.com/show_bug.cgi?id=1126891 (circl)
- [nginx-announce] 20140805 nginx security advisory (CVE-2014-3556) (circl)
- http://nginx.org/download/patch.2014.starttls.txt (circl)
- cve_db.json (github-poc)
- cve_db.json (github-poc)
- cve_db.json (github-poc)
- cve_db.json (github-poc)
- cve_db.json (github-poc)
- cve_db.json (github-poc)
Timeline
- Dec 29, 2014 CVE Published
- Feb 4, 2022 EPSS Score
- Mar 7, 2023 EPSS Score
- Mar 17, 2025 EPSS Score
- Mar 29, 2025 EPSS Score
- Apr 13, 2025 EPSS Score
- Apr 14, 2025 EPSS Score
- May 1, 2025 EPSS Score
- May 18, 2025 EPSS Score
- May 25, 2025 EPSS Score
- Jun 1, 2025 EPSS Score
- Jun 6, 2025 EPSS Score
References
- https://ubuntu.com/security/CVE-2014-3556 third-party-advisory
- http://mailman.nginx.org/pipermail/nginx-announce/2014/000144.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2014-3556 third-party-advisory