CVE-2021-33910 · cross-distro fix matrix

CVE-2021-33910: basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash.

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-33910 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

systemd→ fixed in247.3-6urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y systemd
```

Debian bookworm

Source: Debian Security Tracker

systemd→ fixed in247.3-6urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y systemd
```

Debian trixie

Source: Debian Security Tracker

systemd→ fixed in247.3-6urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y systemd
```

Are YOU affected by CVE-2021-33910?

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

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