CVE-2021-41253 · cross-distro fix matrix

CVE-2021-41253: Zydis is an x86/x86-64 disassembler library. Users of Zydis versions v3.2.0 and older that use the string functions provided in `zycore` in order to append untrusted user data to the formatter buffer within their custom formatter hooks can run into heap buffer overflows. Older versions of Zydis fail

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-41253 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

zydis→ fixed in3.2.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y zydis
```

Debian trixie

Source: Debian Security Tracker

zydis→ fixed in3.2.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y zydis
```

Are YOU affected by CVE-2021-41253?

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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