CVE-2021-20304 · cross-distro fix matrix

CVE-2021-20304: A flaw was found in OpenEXR's hufDecode functionality. This flaw allows an attacker who can pass a crafted file to be processed by OpenEXR, to trigger an undefined right shift error. The highest threat from this vulnerability is to system availability.

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-20304 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

openexr→ fixed in2.5.4-1urgency: unimportant

sudo apt-get install --only-upgrade -y openexr

Debian bookworm

Source: Debian Security Tracker

openexr→ fixed in2.5.4-1urgency: unimportant

sudo apt-get install --only-upgrade -y openexr

Debian trixie

Source: Debian Security Tracker

openexr→ fixed in2.5.4-1urgency: unimportant

sudo apt-get install --only-upgrade -y openexr

Are YOU affected by CVE-2021-20304?

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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