CVE-2025-58056 · cross-distro fix matrix

CVE-2025-58056: Netty is an asynchronous event-driven network application framework for development of maintainable high performance protocol servers and clients. In versions 4.1.124.Final, and 4.2.0.Alpha3 through 4.2.4.Final, Netty incorrectly accepts standalone newline characters (LF) as a chunk-size line termin

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

Fix per ecosystem

Each block below is a distro release where CVE-2025-58056 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

netty→ fixed in1:4.1.48-4+deb11u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y netty
```

Debian bookworm

Source: Debian Security Tracker

netty→ fixed in1:4.1.48-7+deb12u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y netty
```

Debian trixie

Source: Debian Security Tracker

netty→ fixed in1:4.1.48-10+deb13u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y netty
```

Are YOU affected by CVE-2025-58056?

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

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