1. Ubuntu Security Notices
  2. USN-6399-1

USN-6399-1: Puma vulnerability

Publication date

27 September 2023

Overview

Puma could allow HTTP Request Smuggling attacks.

Releases

Packages

  • puma - threaded HTTP 1.1 server for Ruby/Rack applications

Details

It was discovered that Puma incorrectly handled parsing certain headers. A
remote attacker could possibly use this issue to perform an HTTP request
Smuggling attack.

It was discovered that Puma incorrectly handled parsing certain headers. A
remote attacker could possibly use this issue to perform an HTTP request
Smuggling attack.

Update instructions

In general, a standard system update will 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 puma –  5.6.5-3ubuntu1.1

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References

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