CVE-2021-32919 · cross-distro fix matrix

CVE-2021-32919: An issue was discovered in Prosody before 0.11.9. The undocumented dialback_without_dialback option in mod_dialback enables an experimental feature for server-to-server authentication. It does not correctly authenticate remote server certificates, allowing a remote server to impersonate another serv

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-32919 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

prosody→ fixed in0.11.9-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y prosody
```

Debian bookworm

Source: Debian Security Tracker

prosody→ fixed in0.11.9-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y prosody
```

Debian trixie

Source: Debian Security Tracker

prosody→ fixed in0.11.9-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y prosody
```

Alpine v3.20

Source: Alpine secdb

prosody→ fixed in0.11.9-r0
```
apk update && apk add --upgrade prosody
```

Alpine v3.21

Source: Alpine secdb

prosody→ fixed in0.11.9-r0
```
apk update && apk add --upgrade prosody
```

Alpine edge

Source: Alpine secdb

prosody→ fixed in0.11.9-r0
```
apk update && apk add --upgrade prosody
```

Alpine v3.18

Source: Alpine secdb

prosody→ fixed in0.11.9-r0
```
apk update && apk add --upgrade prosody
```

Alpine v3.19

Source: Alpine secdb

prosody→ fixed in0.11.9-r0
```
apk update && apk add --upgrade prosody
```

Are YOU affected by CVE-2021-32919?

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

CVE-2021-32919dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

See StackPatch ($99 lifetime)