CVE-2019-3878 · cross-distro fix matrix

CVE-2019-3878: A vulnerability was found in mod_auth_mellon before v0.14.2. If Apache is configured as a reverse proxy and mod_auth_mellon is configured to only let through authenticated users (with the require valid-user directive), adding special HTTP headers that are normally used to start the special SAML ECP

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

Fix per ecosystem

Each block below is a distro release where CVE-2019-3878 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

libapache2-mod-auth-mellon→ fixed in0.14.2-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libapache2-mod-auth-mellon
```

Debian bookworm

Source: Debian Security Tracker

libapache2-mod-auth-mellon→ fixed in0.14.2-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libapache2-mod-auth-mellon
```

Debian trixie

Source: Debian Security Tracker

libapache2-mod-auth-mellon→ fixed in0.14.2-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libapache2-mod-auth-mellon
```

Are YOU affected by CVE-2019-3878?

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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