CVE-2019-11027

Publication date 10 June 2019

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Ruby OpenID (aka ruby-openid) through 2.8.0 has a remotely exploitable flaw. This library is used by Rails web applications to integrate with OpenID Providers. Severity can range from medium to critical, depending on how a web application developer chose to employ the ruby-openid library. Developers who based their OpenID integration heavily on the "example app" provided by the project are at highest risk.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ruby-openid	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Vulnerable, fix deferred
	16.04 LTS xenial	Vulnerable, fix deferred
	14.04 LTS trusty	Not in release

Notes

emitorino

The fix in https://github.com/openid/ruby-openid/pull/121 breaks login flows. For issue details please see https://github.com/openid/ruby-openid/issues/125 As of 2023/07/13 proposed fix has not been reviewed https://github.com/openid/ruby-openid/pull/128. Marking as deferred to see if it will eventually be fixed or not.

Patch details

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

Package	Patch details
ruby-openid	Upstream: 8a4c31a

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H