CVE-2019-12387

Publication date 10 June 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

In Twisted before 19.2.1, twisted.web did not validate or sanitize URIs or HTTP methods, allowing an attacker to inject invalid characters such as CRLF.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
twisted	19.10 eoan	Fixed 18.9.0-3ubuntu1.1
	19.04 disco	Ignored end of life
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Fixed 17.9.0-2ubuntu0.1
	16.04 LTS xenial	Fixed 16.0.0-1ubuntu0.4
	14.04 LTS trusty	Fixed 13.2.0-1ubuntu1.2+esm1
twisted-py3	19.10 eoan	Not in release
	19.04 disco	Not in release
	18.10 cosmic	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
twisted	Upstream: 6c61fc4

Severity score breakdown

Parameter	Value
Base score	6.1 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Changed
Confidentiality	Low
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N