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Ubuntu 14.04 ESM USN-3685-2 Moderate: Ruby Code Execution Threat

USN-3685-1 introduced a regression in Ruby.. =========================================================================Ubuntu Security Notice USN-3685-2 March 25, 2021 ruby2.0 regression ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 ESM Summary: USN-3685-1 introduced a regression in Ruby. Software Description: - ruby2.0: Object-oriented scripting language Details: USN-3685-1 fixed a vulnerability in Ruby. The fix for CVE-2017-0903 introduced a regression in Ruby. This update fixes the problem. Original advisory details: Some of these CVE were already addressed in previous USN: 3439-1, 3553-1, 3528-1. Here we address for the remain releases. It was discovered that Ruby incorrectly handled certain inputs. An attacker could use this to cause a buffer overrun. (CVE-2017-0898) It was discovered that Ruby incorrectly handled certain files. An attacker could use this to overwrite any file on the filesystem. (CVE-2017-0901) It was discovered that Ruby was vulnerable to a DNS hijacking vulnerability. An attacker could use this to possibly force the RubyGems client to download and install gems from a server that the attacker controls. (CVE-2017-0902) It was discovered that Ruby incorrectly handled certain YAML files. An attacker could use this to possibly execute arbitrary code. (CVE-2017-0903) It was discovered that Ruby incorrectly handled certain files. An attacker could use this to expose sensitive information. (CVE-2017-14064) It was discovered that Ruby incorrectly handled certain inputs. An attacker could use this to execute arbitrary code. (CVE-2017-10784) It was discovered that Ruby incorrectly handled certain network requests. An attacker could possibly use this to inject a crafted key into a HTTP response. (CVE-2017-17742) It was discovered that Ruby incorrectly handled certain files. An attacker could possibly use this to execute arbitrary code. This update is only addressed toruby2.0. (CVE-2018-1000074) It was discovered that Ruby incorrectly handled certain network requests. An attacker could possibly use this to cause a denial of service. (CVE-2018-8777) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM: libruby2.0 2.0.0.484-1ubuntu2.13+esm1 ruby2.0 2.0.0.484-1ubuntu2.13+esm1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-3685-2 https://ubuntu.com/security/notices/USN-3685-1 CVE-2017-0903, https://bugs.launchpad.net/ubuntu/+source/ruby2.0/+bug/1777174 . The vulnerabilities in Ruby on Ubuntu 14.04 ESM have been resolved with USN-3685-2, which tackles a variety of security concerns associated with the Ruby programming language.. Ruby Regression, Ubuntu 14.04 ESM, Security Issues. . Severity: Important. LinuxSecurity.com Team

Mar 25, 2021 •Important Ubuntu