USN-5354-2: Twisted vulnerability
5 May 2022
Twisted could be made to crash if it received specially crafted network traffic.
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)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 22.04
Ubuntu 16.04
-
python3-twisted
-
16.0.0-1ubuntu0.4+esm1
Available with Ubuntu Pro
-
python-twisted-web
-
16.0.0-1ubuntu0.4+esm1
Available with Ubuntu Pro
-
python-twisted
-
16.0.0-1ubuntu0.4+esm1
Available with Ubuntu Pro
-
python-twisted-bin
-
16.0.0-1ubuntu0.4+esm1
Available with Ubuntu Pro
Ubuntu 14.04
-
python-twisted-web
-
13.2.0-1ubuntu1.2+esm2
Available with Ubuntu Pro
-
python-twisted
-
13.2.0-1ubuntu1.2+esm2
Available with Ubuntu Pro
-
python-twisted-bin
-
13.2.0-1ubuntu1.2+esm2
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-5354-1: python-twisted-news, twisted, python-twisted, python-twisted-bin, python-twisted-core, python-twisted-web, python-twisted-runner, twisted-doc, python-twisted-names, python3-twisted, python-twisted-words, python3-twisted-bin, python-twisted-conch, python-twisted-mail