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CVE-2014-3556

CVE-2014-3556

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 7.8% · Fix available

Published
Updated

Stack: system · web

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • nginx Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.6.1-1

    Update to 1.6.1-1

  • nginx Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.6.1-1

    Update to 1.6.1-1

  • nginx Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.6.1-1

    Update to 1.6.1-1

Original sources

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