CVE-2016-4804 · cross-distro fix matrix

CVE-2016-4804: The read_boot function in boot.c in dosfstools before 4.0 allows attackers to cause a denial of service (crash) via a crafted filesystem, which triggers a heap-based buffer overflow in the (1) read_fat function or an out-of-bounds heap read in (2) get_fat function.

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

Fix per ecosystem

Each block below is a distro release where CVE-2016-4804 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

dosfstools→ fixed in4.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dosfstools
```

Debian bookworm

Source: Debian Security Tracker

dosfstools→ fixed in4.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dosfstools
```

Debian trixie

Source: Debian Security Tracker

dosfstools→ fixed in4.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dosfstools
```

Are YOU affected by CVE-2016-4804?

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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