CVE-2021-3696 · cross-distro fix matrix

CVE-2021-3696: A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of corru

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-3696 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

grub2→ fixed in2.06-3~deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y grub2
```

Debian bookworm

Source: Debian Security Tracker

grub2→ fixed in2.06-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y grub2
```

Debian trixie

Source: Debian Security Tracker

grub2→ fixed in2.06-3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y grub2
```

Are YOU affected by CVE-2021-3696?

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

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