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USN-5354-1: Twisted vulnerabilities

30 March 2022

Several security issues were fixed in Twisted.

Releases

Packages

  • twisted - Event-based framework for internet applications

Details

It was discovered that Twisted incorrectly filtered HTTP headers when clients
are being redirected to another origin. A remote attacker could use this issue
to obtain sensitive information. (CVE-2022-21712)

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 21.10
Ubuntu 20.04
Ubuntu 18.04

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

Related notices

  • USN-5354-2: python3-twisted, python-twisted-news, python-twisted-words, python-twisted-web, python-twisted-lore, python-twisted, python-twisted-bin, python-twisted-mail, twisted-doc, python-twisted-core, python-twisted-runner, python-twisted-conch, twisted, python-twisted-names