RubyGems Critical DoS Vulnerabilities in Ubuntu 22.04 LTS USN-7735-1

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.04 - Ubuntu 22.04 LTS Summary: Several security issues were fixed in RubyGems. Software Description: - rubygems: package management framework for Ruby libraries/applications Details: It was discovered that RubyGems incorrectly handled certain regular expressions. An attacker could use this issue to cause RubyGems to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS. (CVE-2023-28755) It was discovered that RubyGems incorrectly handled decompressed domain names within a DNS packet. An attacker could use this issue to cause RubyGems to crash, resulting in a denial of service. This issue only affected Ubuntu 25.04. (CVE-2025-24294)