twisted: Twisted is an event-based framework for internet applications, supporting Python 3.6+
CVE-2022-21716 is fixed in 14 products on 1 platform, first by python-twisted 17.9.0-2ubuntu0.3, released March 3, 2022. It is not reported as exploited. Patch Radar priority: High.
Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer's SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as `nc -rv localhost 22 < /dev/zero`. A patch is available in version 22.2.0. There are currently no known workarounds.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python-twisted · Ubuntu 18.04.6 LTS (bionic) | 17.9.0-2ubuntu0.3 | python-twisted 17.9.0-2ubuntu0.3 | Mar 3, 2022 |
| python-twisted-bin · Ubuntu 18.04.6 LTS (bionic) | 17.9.0-2ubuntu0.3 | python-twisted-bin 17.9.0-2ubuntu0.3 | Mar 3, 2022 |
| python-twisted-conch · Ubuntu 18.04.6 LTS (bionic) | 1:17.9.0-2ubuntu0.3 | python-twisted-conch 1:17.9.0-2ubuntu0.3 | Mar 3, 2022 |
| python-twisted-core · Ubuntu 18.04.6 LTS (bionic) | 17.9.0-2ubuntu0.3 | python-twisted-core 17.9.0-2ubuntu0.3 | Mar 3, 2022 |
| python-twisted-mail · Ubuntu 18.04.6 LTS (bionic) | 17.9.0-2ubuntu0.3 | python-twisted-mail 17.9.0-2ubuntu0.3 | Mar 3, 2022 |
| python-twisted-names · Ubuntu 18.04.6 LTS (bionic) | 17.9.0-2ubuntu0.3 | python-twisted-names 17.9.0-2ubuntu0.3 | Mar 3, 2022 |
| python-twisted-news · Ubuntu 18.04.6 LTS (bionic) | 17.9.0-2ubuntu0.3 | python-twisted-news 17.9.0-2ubuntu0.3 | Mar 3, 2022 |
| python-twisted-runner · Ubuntu 18.04.6 LTS (bionic) | 17.9.0-2ubuntu0.3 | python-twisted-runner 17.9.0-2ubuntu0.3 | Mar 3, 2022 |
| python-twisted-web · Ubuntu 18.04.6 LTS (bionic) | 17.9.0-2ubuntu0.3 | python-twisted-web 17.9.0-2ubuntu0.3 | Mar 3, 2022 |
| python-twisted-words · Ubuntu 18.04.6 LTS (bionic) | 17.9.0-2ubuntu0.3 | python-twisted-words 17.9.0-2ubuntu0.3 | Mar 3, 2022 |
| python3-twisted · Ubuntu 18.04.6 LTS (bionic) | 17.9.0-2ubuntu0.3 | python3-twisted 17.9.0-2ubuntu0.3 | Mar 3, 2022 |
| python3-twisted · Ubuntu 20.04 LTS (focal) | 18.9.0-11ubuntu0.20.04.2 | python3-twisted 18.9.0-11ubuntu0.20.04.2 | Mar 3, 2022 |
| python3-twisted · Ubuntu 22.04.1 LTS (jammy) | 22.1.0-2ubuntu2.1 | python3-twisted 22.1.0-2ubuntu2.1 | Mar 3, 2022 |
| python3-twisted · amzn 2023 | 22.4.0-124.amzn2023.0.2 | ALAS2023-2023-056 | Feb 17, 2023 |
| python3-twisted+tls · amzn 2023 | 22.4.0-124.amzn2023.0.2 | ALAS2023-2023-056 | Feb 17, 2023 |
| python3-twisted-bin · Ubuntu 18.04.6 LTS (bionic) | 17.9.0-2ubuntu0.3 | python3-twisted-bin 17.9.0-2ubuntu0.3 | Mar 3, 2022 |
| python3-twisted-bin · Ubuntu 20.04 LTS (focal) | 18.9.0-11ubuntu0.20.04.2 | python3-twisted-bin 18.9.0-11ubuntu0.20.04.2 | Mar 3, 2022 |
| twisted · Debian 12.15 (bookworm) | 22.2.0-1 | DEBIAN-CVE-2022-21716 | Mar 3, 2022 |
| twisted · Debian 13.5 (trixie) | 22.2.0-1 | DEBIAN-CVE-2022-21716 | Mar 3, 2022 |
| twisted · Debian 14 | 22.2.0-1 | DEBIAN-CVE-2022-21716 | Mar 3, 2022 |
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