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USN-4308-1: Twisted vulnerabilities

USN-4308-1: Twisted vulnerabilities

twisted vulnerabilities

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

Summary

Several security issues were fixed in Twisted.

Software Description

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)

It was discovered that Twisted incorrectly handled HTTP/2 connections. A
remote attacker could possibly use this issue to cause Twisted to hang or
consume resources, leading to a denial of service. This issue only affected
Ubuntu 18.04 LTS and Ubuntu 19.10. (CVE-2019-9512, CVE-2019-9514,
CVE-2019-9515)

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 19.10
python-twisted18.9.0-3ubuntu1.1
python-twisted-bin18.9.0-3ubuntu1.1
python-twisted-web18.9.0-3ubuntu1.1
python3-twisted18.9.0-3ubuntu1.1
python3-twisted-bin18.9.0-3ubuntu1.1
Ubuntu 18.04 LTS
python-twisted17.9.0-2ubuntu0.1
python-twisted-bin17.9.0-2ubuntu0.1
python-twisted-web17.9.0-2ubuntu0.1
python3-twisted17.9.0-2ubuntu0.1
python3-twisted-bin17.9.0-2ubuntu0.1
Ubuntu 16.04 LTS
python-twisted16.0.0-1ubuntu0.4
python-twisted-bin16.0.0-1ubuntu0.4
python-twisted-web16.0.0-1ubuntu0.4
python3-twisted16.0.0-1ubuntu0.4

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

Source: USN-4308-1: Twisted vulnerabilities

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