CVE-2015-5470 · cross-distro fix matrix

CVE-2015-5470: The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x before 3.4.5 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a long name that refers to itself. NO

Affects 3 Linux releases across 6 (distro × package) combinations.

Elevated exploitation risk

FIRST EPSS puts CVE-2015-5470's probability of exploitation in the next 30 days at 11% (95th percentile of all CVEs)— well above the noise floor. Prioritize it.

EPSS:11% · 30-day exploit probability95th percentile

Fix per ecosystem

Each block below is a distro release where CVE-2015-5470 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

pdns→ fixed in3.4.5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y pdns
```
pdns-recursor→ fixed in3.7.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y pdns-recursor
```

Debian bookworm

Source: Debian Security Tracker

pdns→ fixed in3.4.5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y pdns
```
pdns-recursor→ fixed in3.7.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y pdns-recursor
```

Debian trixie

Source: Debian Security Tracker

pdns→ fixed in3.4.5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y pdns
```
pdns-recursor→ fixed in3.7.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y pdns-recursor
```

Are YOU affected by CVE-2015-5470?

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-2015-5470dropped 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. From $9/mo, 14-day free trial, cancel anytime.

See StackPatch (from $9/mo)