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USN-5354-2: Twisted vulnerability

5 May 2022

Twisted could be made to crash if it received specially crafted network traffic.

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Releases

Packages

  • twisted - Event-based framework for internet applications

Details

USN-5354-1 fixed vulnerabilities in Twisted. This update provides the
corresponding updates for Ubuntu 14.04 ESM, Ubuntu 16.04 ESM and
Ubuntu 22.04 LTS.

Original advisory details:

It was discovered that Twisted incorrectly processed SSH handshake data on
connection establishments. A remote attacker could use this issue to cause
Twisted to crash, resulting in a denial of service. (CVE-2022-21716)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 22.04
Ubuntu 16.04
Ubuntu 14.04

In general, a standard system update will make all the necessary changes.

References

Related notices

  • USN-5354-1: python-twisted-news, python-twisted-mail, python-twisted-conch, python-twisted-words, twisted-doc, python3-twisted-bin, python3-twisted, python-twisted-bin, python-twisted-web, python-twisted-core, python-twisted-names, python-twisted, python-twisted-runner, twisted