CVE-2018-4022 · cross-distro fix matrix

CVE-2018-4022: A use-after-free vulnerability exists in the way MKVToolNix MKVINFO v25.0.0 handles the MKV (matroska) file format. A specially crafted MKV file can cause arbitrary code execution in the context of the current user.

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

Fix per ecosystem

Each block below is a distro release where CVE-2018-4022 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

mkvtoolnix→ fixed in28.2.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mkvtoolnix
```

Debian bookworm

Source: Debian Security Tracker

mkvtoolnix→ fixed in28.2.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mkvtoolnix
```

Debian trixie

Source: Debian Security Tracker

mkvtoolnix→ fixed in28.2.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mkvtoolnix
```

Are YOU affected by CVE-2018-4022?

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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