USN-6210-1: Doorkeeper vulnerability

7 July 2023

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

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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.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 23.04
Ubuntu 22.10
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References

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Further reading