CVE-2021-36773 · cross-distro fix matrix

CVE-2021-36773: uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality).

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-36773 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

ublock-origin→ fixed in1.37.0+dfsg-1~deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ublock-origin
```

Debian bookworm

Source: Debian Security Tracker

ublock-origin→ fixed in1.37.0+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ublock-origin
```

Debian trixie

Source: Debian Security Tracker

ublock-origin→ fixed in1.37.0+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y ublock-origin
```

Are YOU affected by CVE-2021-36773?

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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