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CVE-2021-46671 · cross-distro fix matrix

CVE-2021-46671: options.c in atftp before 0.7.5 reads past the end of an array, and consequently discloses server-side /etc/group data to a remote client.

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-46671 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • atftp→ fixed in0.7.git20120829-3.3+deb11u2urgency: not yet assigned
    sudo apt-get install --only-upgrade -y atftp

Debian bookworm

Source: Debian Security Tracker

  • atftp→ fixed in0.7.git20210915-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y atftp

Debian trixie

Source: Debian Security Tracker

  • atftp→ fixed in0.7.git20210915-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y atftp
Are YOU affected by CVE-2021-46671?

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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