CVE-2021-36369 · cross-distro fix matrix

CVE-2021-36369: An issue was discovered in Dropbear through 2020.81. Due to a non-RFC-compliant check of the available authentication methods in the client-side SSH code, it is possible for an SSH server to change the login process in its favor. This attack can bypass additional security measures such as FIDO2 toke

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-36369 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

dropbear→ fixed in2020.81-3+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dropbear
```

Debian bookworm

Source: Debian Security Tracker

dropbear→ fixed in2022.82-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dropbear
```

Debian trixie

Source: Debian Security Tracker

dropbear→ fixed in2022.82-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dropbear
```

Are YOU affected by CVE-2021-36369?

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

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Continuous monitoring beats manual checking

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