CVE-2021-22570 · cross-distro fix matrix

CVE-2021-22570: Nullptr dereference when a null char is present in a proto symbol. The symbol is parsed incorrectly, leading to an unchecked call into the proto file's name during generation of the resulting error message. Since the symbol is incorrectly parsed, the file is nullptr. We recommend upgrading to versio

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-22570 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

protobuf→ fixed in3.12.4-1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y protobuf
```

Debian bookworm

Source: Debian Security Tracker

protobuf→ fixed in3.21.9-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y protobuf
```

Debian trixie

Source: Debian Security Tracker

protobuf→ fixed in3.21.9-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y protobuf
```

Are YOU affected by CVE-2021-22570?

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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