1. Ubuntu Security Notices
  2. USN-6210-1

USN-6210-1: Doorkeeper vulnerability

Publication date

7 July 2023

Overview

Doorkeeper could be made to expose sensitive information over the network.

Releases

Packages

Details

It was discovered that Doorkeeper incorrectly performed authorization checks
for public clients that have been previous approved. An attacker could
potentially exploit these in order to impersonate another user and obtain
sensitive information.

It was discovered that Doorkeeper incorrectly performed authorization checks
for public clients that have been previous approved. An attacker could
potentially exploit these in order to impersonate another user and obtain
sensitive information.

Update instructions

After a standard system update you need to restart any applications using Doorkeeper to make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
23.04 lunar ruby-doorkeeper –  5.5.0-2ubuntu0.23.04.1
22.10 kinetic ruby-doorkeeper –  5.5.0-2ubuntu0.22.10.1
22.04 jammy ruby-doorkeeper –  5.5.0-2ubuntu0.22.04.1
20.04 focal ruby-doorkeeper –  5.0.2-2ubuntu0.1
18.04 bionic ruby-doorkeeper –  4.3.1-1ubuntu0.1~esm1  
16.04 xenial ruby-doorkeeper –  2.2.1-1ubuntu0.1~esm1  

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References

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