CVE-2021-3941 · cross-distro fix matrix

CVE-2021-3941: In ImfChromaticities.cpp routine RGBtoXYZ(), there are some division operations such as `float Z = (1 - chroma.white.x - chroma.white.y) * Y / chroma.white.y;` and `chroma.green.y * (X + Z))) / d;` but the divisor is not checked for a 0 value. A specially crafted file could trigger a divide-by-zero

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-3941 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

openexr→ fixed in2.5.4-2+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openexr
```

Debian bookworm

Source: Debian Security Tracker

openexr→ fixed in3.1.5-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openexr
```

Debian trixie

Source: Debian Security Tracker

openexr→ fixed in3.1.5-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openexr
```

Are YOU affected by CVE-2021-3941?

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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