CVE-2019-8308 · cross-distro fix matrix

CVE-2019-8308: Flatpak before 1.0.7, and 1.1.x and 1.2.x before 1.2.3, exposes /proc in the apply_extra script sandbox, which allows attackers to modify a host-side executable file.

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

Fix per ecosystem

Each block below is a distro release where CVE-2019-8308 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

flatpak→ fixed in1.2.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y flatpak
```

Debian bookworm

Source: Debian Security Tracker

flatpak→ fixed in1.2.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y flatpak
```

Debian trixie

Source: Debian Security Tracker

flatpak→ fixed in1.2.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y flatpak
```

Are YOU affected by CVE-2019-8308?

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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