USN-4308-2: Twisted vulnerabilities

Releases

• Ubuntu 14.04 ESM

Packages

• twisted - Event-based framework for internet applications

Details

USN-4308-1 fixed several vulnerabilities in Twisted. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

it was discovered that Twisted incorrectly validated or sanitized certain
URIs or HTTP methods. A remote attacker could use this issue to inject
invalid characters and possibly perform header injection attacks.
(CVE-2019-12387)

It was discovered that Twisted incorrectly verified XMPP TLS certificates.
A remote attacker could possibly use this issue to perform a
machine-in-the-middle attack and obtain sensitive information. (CVE-2019-12855)

Jake Miller and ZeddYu Lu discovered that Twisted incorrectly handled
certain content-length headers. A remote attacker could possibly use this
issue to perform HTTP request splitting attacks. (CVE-2020-10108,
CVE-2020-10109)

Update instructions

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

Ubuntu 14.04

• python-twisted - 13.2.0-1ubuntu1.2+esm1
• python-twisted-bin - 13.2.0-1ubuntu1.2+esm1
• python-twisted-web - 13.2.0-1ubuntu1.2+esm1

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

References

• CVE-2019-12387
• CVE-2019-12855
• CVE-2020-10108
• CVE-2020-10109

Related notices

• USN-4308-1: python-twisted-runner, python-twisted-mail, python3-twisted-bin, python-twisted-bin, twisted, python-twisted-words, python-twisted-names, twisted-doc, python-twisted-conch, python-twisted-web, python-twisted, python3-twisted, python-twisted-core, python-twisted-news