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Packages - ruby-sinatra - Ruby web-development dressed in a DSL Details It was discovered that Sinatra did not properly handle header parsing, causing ETag generation to hang when given specific input. A remote attacker could possibly use this issue to cause a denial of service. It was discovered that Sinatra did not properly handle header parsing, causing ETag generation to hang when given specific input. A remote attacker could possibly use this issue to cause a denial of service. Update instructions After a standard system update you need to restart any applications that use ruby-sinatra to 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 | || |---|---|---|---| | 22.04 LTS jammy | ruby-sinatra – 2.0.8.1-2+deb11u1ubuntu0.1~esm1 | || | 20.04 LTS focal | ruby-sinatra – 2.0.8.1-1ubuntu0.1~esm3 | || | 18.04 LTS bionic | ruby-sinatra – 1.4.8-1ubuntu0.1~esm3 | || | 16.04 LTS xenial | ruby-sinatra – 1.4.7-3ubuntu0.1~esm3 | Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.