CVE-2025-30194 · cross-distro fix matrix

CVE-2025-30194: When DNSdist is configured to provide DoH via the nghttp2 provider, an attacker can cause a denial of service by crafting a DoH exchange that triggers an illegal memory access (double-free) and crash of DNSdist, causing a denial of service. The remedy is: upgrade to the patched 1.9.9 version. A wo

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

Fix per ecosystem

Each block below is a distro release where CVE-2025-30194 has a known fix. Run the listed command on that distro to remediate.

Debian trixie

Source: Debian Security Tracker

dnsdist→ fixed in1.9.9-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y dnsdist
```

Alpine v3.21

Source: Alpine secdb

dnsdist→ fixed in1.9.9-r0
```
apk update && apk add --upgrade dnsdist
```

Alpine edge

Source: Alpine secdb

dnsdist→ fixed in1.9.9-r0
```
apk update && apk add --upgrade dnsdist
```

Are YOU affected by CVE-2025-30194?

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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