CVE-2021-43519 · cross-distro fix matrix

CVE-2021-43519: Stack overflow in lua_resume of ldo.c in Lua Interpreter 5.1.0~5.4.4 allows attackers to perform a Denial of Service via a crafted script file.

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-43519 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

lua5.4→ fixed in5.4.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y lua5.4
```

Debian trixie

Source: Debian Security Tracker

lua5.4→ fixed in5.4.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y lua5.4
```

Are YOU affected by CVE-2021-43519?

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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