CVE-2022-0547 · cross-distro fix matrix

CVE-2022-0547: OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred authentication replies, which allows an external user to be granted access with only partially correct credentials.

Affects 8 Linux releases across 8 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2022-0547 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

openvpn→ fixed in2.5.1-3+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openvpn
```

Debian bookworm

Source: Debian Security Tracker

openvpn→ fixed in2.5.6-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openvpn
```

Debian trixie

Source: Debian Security Tracker

openvpn→ fixed in2.5.6-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openvpn
```

Alpine v3.20

Source: Alpine secdb

openvpn→ fixed in2.5.6-r0
```
apk update && apk add --upgrade openvpn
```

Alpine v3.21

Source: Alpine secdb

openvpn→ fixed in2.5.6-r0
```
apk update && apk add --upgrade openvpn
```

Alpine edge

Source: Alpine secdb

openvpn→ fixed in2.5.6-r0
```
apk update && apk add --upgrade openvpn
```

Alpine v3.18

Source: Alpine secdb

openvpn→ fixed in2.5.6-r0
```
apk update && apk add --upgrade openvpn
```

Alpine v3.19

Source: Alpine secdb

openvpn→ fixed in2.5.6-r0
```
apk update && apk add --upgrade openvpn
```

Are YOU affected by CVE-2022-0547?

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

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

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