CVE-2021-41689 · cross-distro fix matrix

CVE-2021-41689: DCMTK through 3.6.6 does not handle string copy properly. Sending specific requests to the dcmqrdb program, it would query its database and copy the result even if the result is null, which can incur a head-based overflow. An attacker can use it to launch a DoS attack.

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-41689 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

dcmtk→ fixed in3.6.5-1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dcmtk
```

Debian bookworm

Source: Debian Security Tracker

dcmtk→ fixed in3.6.7-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dcmtk
```

Debian trixie

Source: Debian Security Tracker

dcmtk→ fixed in3.6.7-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dcmtk
```

Are YOU affected by CVE-2021-41689?

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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