USN-7372-1: Varnish vulnerability

26 March 2025

Varnish could allow unintended access to network services.

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Releases

Packages

  • varnish - state of the art, high-performance web accelerator

Details

Martin van Kervel Smedshammer discovered that Varnish did not properly
sanitize certain HTTP headers. A remote attacker could possibly use this
issue to perform a cross-site request forgery (CSRF) attack.

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 22.04
Ubuntu 20.04
Ubuntu 18.04

In general, a standard system update will make all the necessary changes.

References

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Further reading