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CVE-2021-21419 · cross-distro fix matrix

CVE-2021-21419: Eventlet is a concurrent networking library for Python. A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame. A patch in version 0.31.0 restricts websocket frame to reas

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-21419 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • python-eventlet→ fixed in0.26.1-7urgency: not yet assigned
    sudo apt-get install --only-upgrade -y python-eventlet

Debian bookworm

Source: Debian Security Tracker

  • python-eventlet→ fixed in0.26.1-7urgency: not yet assigned
    sudo apt-get install --only-upgrade -y python-eventlet

Debian trixie

Source: Debian Security Tracker

  • python-eventlet→ fixed in0.26.1-7urgency: not yet assigned
    sudo apt-get install --only-upgrade -y python-eventlet
Are YOU affected by CVE-2021-21419?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash
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CVE-2021-21419dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

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