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Ubuntu: (Multiple Advisories) (CVE-2022-21716): Twisted vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2022-21716): Twisted vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
03/03/2022
Created
04/02/2022
Added
03/31/2022
Modified
03/22/2023

Description

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.

Solution(s)

  • ubuntu-upgrade-python-twisted
  • ubuntu-upgrade-python-twisted-bin
  • ubuntu-upgrade-python-twisted-web
  • ubuntu-upgrade-python3-twisted
  • ubuntu-upgrade-python3-twisted-bin

References

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