CVE-2021-3737 · cross-distro fix matrix

CVE-2021-3737: A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.

Affects 3 Linux releases across 4 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-3737 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

pypy3→ fixed in7.3.5+dfsg-2+deb11u4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y pypy3
```
python3.9→ fixed in3.9.2-1+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y python3.9
```

Debian bookworm

Source: Debian Security Tracker

pypy3→ fixed in7.3.8+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y pypy3
```

Debian trixie

Source: Debian Security Tracker

pypy3→ fixed in7.3.8+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y pypy3
```

Are YOU affected by CVE-2021-3737?

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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