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CVE-2021-3571 · cross-distro fix matrix

CVE-2021-3571: A flaw was found in the ptp4l program of the linuxptp package. When ptp4l is operating on a little-endian architecture as a PTP transparent clock, a remote attacker could send a crafted one-step sync message to cause an information leak or crash. The highest threat from this vulnerability is to data

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-3571 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • linuxptp→ fixed in3.1-2.1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linuxptp

Debian bookworm

Source: Debian Security Tracker

  • linuxptp→ fixed in3.1-2.1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linuxptp

Debian trixie

Source: Debian Security Tracker

  • linuxptp→ fixed in3.1-2.1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y linuxptp
Are YOU affected by CVE-2021-3571?

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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