Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 523
Alerts This Week
Warning Icon 1 523

Ubuntu 25.04: ruby-rack Critical Denial of Service Vulnerability USN-7784-1

ubuntu
Calendar Grey September 29, 2025
Scroller Ubuntu
Ubuntu warns of a ruby-rack vulnerability leading to potential crashes from crafted network traffic.
Rack could be made to crash if it received specially crafted network traffic.

Summary

Rack could be made to crash if it received specially crafted network

traffic.

Software Description:

- ruby-rack: modular Ruby webserver interface

Details:

It was discovered that Rack incorrectly handled limiting the amount of

parameters. An attacker could possibly use this issue to bypass the

params_limit value, leading to a denial of service.

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu network attack ruby rack

Update Instructions

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

Ubuntu 25.04
  ruby-rack                       2.2.7-1.1ubuntu0.25.04.3

Ubuntu 24.04 LTS
  ruby-rack                       2.2.7-1ubuntu0.4

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

References

https://ubuntu.com/security/notices/USN-7784-1

CVE-2025-59830

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7784-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu network attack ruby rack

Package Information

https://launchpad.net/ubuntu/+source/ruby-rack/2.2.7-1.1ubuntu0.25.04.3
https://launchpad.net/ubuntu/+source/ruby-rack/2.2.7-1ubuntu0.4

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.