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CVE-2020-8244 · cross-distro fix matrix

CVE-2020-8244: A buffer over-read vulnerability exists in bl <4.0.3, <3.0.1, <2.2.1, and <1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-8244 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • node-bl→ fixed in4.0.3-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y node-bl

Debian bookworm

Source: Debian Security Tracker

  • node-bl→ fixed in4.0.3-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y node-bl

Debian trixie

Source: Debian Security Tracker

  • node-bl→ fixed in4.0.3-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y node-bl
Are YOU affected by CVE-2020-8244?

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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