CVE-2025-4444 · cross-distro fix matrix

CVE-2025-4444: A security flaw has been discovered in Tor up to 0.4.7.16/0.4.8.17. Impacted is an unknown function of the component Onion Service Descriptor Handler. Performing manipulation results in resource consumption. The attack may be initiated remotely. The attack's complexity is rated as high. The exploita

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2025-4444 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

tor→ fixed in0.4.9.6-0+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y tor
```

Debian trixie

Source: Debian Security Tracker

tor→ fixed in0.4.9.6-0+deb13u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y tor
```

Are YOU affected by CVE-2025-4444?

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.

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