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CVE-2020-8165 · cross-distro fix matrix

CVE-2020-8165: A deserialization of untrusted data vulnernerability exists in rails < 5.2.4.3, rails < 6.0.3.1 that can allow an attacker to unmarshal user-provided objects in MemCacheStore and RedisCacheStore potentially resulting in an RCE.

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-8165 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • rails→ fixed in2:5.2.4.3+dfsg-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y rails

Debian bookworm

Source: Debian Security Tracker

  • rails→ fixed in2:5.2.4.3+dfsg-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y rails

Debian trixie

Source: Debian Security Tracker

  • rails→ fixed in2:5.2.4.3+dfsg-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y rails
Are YOU affected by CVE-2020-8165?

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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