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USN-6935-1: Prometheus Alertmanager vulnerability

31 July 2024

prometheus-alertmanager could be made to expose sensitive information over the network.

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Releases

Packages

Details

It was discovered that prometheus-alertmanager didn't properly sanitize
input it received through an API endpoint. An attacker with permission to
send requests to this endpoint could potentially inject arbitrary code.

On Ubuntu 20.04 LTS and Ubuntu 22.04 LTS, this vulnerability is only
present if the UI has been explicitly activated.

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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 22.04
Ubuntu 20.04
Ubuntu 18.04

On Ubuntu 20.04 LTS and Ubuntu 22.04 LTS, once the updates have been
installed, you need to recompile and reinstall the UI components and
restart the prometheus-alertmanager service afterwards.

On Ubuntu 18.04 LTS, a standard system update will make all the necessary
changes.

References

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Further reading