CVE-2020-5216 · cross-distro fix matrix

CVE-2020-5216: In Secure Headers (RubyGem secure_headers), a directive injection vulnerability is present in versions before 3.9.0, 5.2.0, and 6.3.0. If user-supplied input was passed into append/override_content_security_policy_directives, a newline could be injected leading to limited header injection. Upon seei

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

Fix per ecosystem

Each block below is a distro release where CVE-2020-5216 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

ruby-secure-headers→ fixed in6.3.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ruby-secure-headers
```

Debian bookworm

Source: Debian Security Tracker

ruby-secure-headers→ fixed in6.3.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ruby-secure-headers
```

Debian trixie

Source: Debian Security Tracker

ruby-secure-headers→ fixed in6.3.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ruby-secure-headers
```

Are YOU affected by CVE-2020-5216?

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.

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