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CVE-2021-3907 · cross-distro fix matrix

CVE-2021-3907: OctoRPKI does not escape a URI with a filename containing "..", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine O

Affects 3 Linux releases across 5 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-3907 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • cfrpki→ fixed in1.4.2-1~deb11u1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y cfrpki
  • fort-validator→ fixed in1.5.3-1~deb11u1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y fort-validator

Debian bookworm

Source: Debian Security Tracker

  • cfrpki→ fixed in1.4.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y cfrpki
  • fort-validator→ fixed in1.5.3-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y fort-validator

Debian trixie

Source: Debian Security Tracker

  • fort-validator→ fixed in1.5.3-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y fort-validator
Are YOU affected by CVE-2021-3907?

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-2021-3907dropped 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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