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CVE-2014-3556 · cross-distro fix matrix

CVE-2014-3556: 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

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2014-3556 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • nginx→ fixed in1.6.1-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y nginx

Debian bookworm

Source: Debian Security Tracker

  • nginx→ fixed in1.6.1-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y nginx

Debian trixie

Source: Debian Security Tracker

  • nginx→ fixed in1.6.1-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y nginx
Are YOU affected by CVE-2014-3556?

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