USN-6597-1: Puma vulnerability

Publication date

25 January 2024

Overview

Puma could be made to consume resources if it received specially crafted network traffic.


Packages

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

Details

It was discovered that Puma incorrectly handled parsing chunked transfer
encoding bodies. A remote attacker could possibly use this issue to cause
Puma to consume resources, leading to a denial of service.

It was discovered that Puma incorrectly handled parsing chunked transfer
encoding bodies. A remote attacker could possibly use this issue to cause
Puma to consume resources, leading to a denial of service.

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
23.10 mantic puma –  5.6.5-4ubuntu2.1
23.04 lunar puma –  5.6.5-3ubuntu1.2

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