CVE-2016-4476 · cross-distro fix matrix

CVE-2016-4476: hostapd 0.6.7 through 2.5 and wpa_supplicant 0.6.7 through 2.5 do not reject \n and \r characters in passphrase parameters, which allows remote attackers to cause a denial of service (daemon outage) via a crafted WPS operation.

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

Fix per ecosystem

Each block below is a distro release where CVE-2016-4476 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

wpa→ fixed in2.3-2.4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wpa
```

Debian bookworm

Source: Debian Security Tracker

wpa→ fixed in2.3-2.4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wpa
```

Debian trixie

Source: Debian Security Tracker

wpa→ fixed in2.3-2.4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wpa
```

Are YOU affected by CVE-2016-4476?

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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