USN-4308-2: Twisted vulnerabilities

USN-4308-2: Twisted vulnerabilities

twisted vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 14.04 ESM

Summary

Several security issues were fixed in Twisted.

Software Description

• 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
man-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 ESM

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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• USN-4308-1
• CVE-2019-12387
• CVE-2019-12855
• CVE-2020-10108
• CVE-2020-10109

Source: USN-4308-2: Twisted vulnerabilities