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[USN-7747-1] RubyGems vulnerability

Posted on 15 September 2025
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-7747-1
September 15, 2025

rubygems vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS

Summary:

RubyGems could be made to consume resources if it received specially
crafted input.

Software Description:
- rubygems: package management framework for Ruby libraries/applications

Details:

It was discovered that RubyGems incorrectly handled certain regular
expressions. An attacker could possibly use this issue to cause RubyGems to
consume resources, leading to a regular expression denial of service
(ReDoS).

Update instructions:

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

Ubuntu 22.04 LTS
ruby-bundler 2.3.5-2ubuntu1.2

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

References:
https://ubuntu.com/security/notices/USN-7747-1
CVE-2023-36617

Package Information:
https://launchpad.net/ubuntu/+source/rubygems/3.3.5-2ubuntu1.2

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