- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202006-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: Nokogiri: Command injection Date: June 13, 2020 Bugs: #691974 ID: 202006-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Nokogiri has a vulnerability allowing arbitrary execution of code if a certain function is used. Background ========== Nokogiri is an HTML, XML, SAX, and Reader parser. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-ruby/nokogiri < 1.10.4 >= 1.10.4 Description =========== A command injection vulnerability in Nokogiri allows commands to be executed in a subprocess by Ruby's Kernel.open method. Processes are vulnerable only if the undocumented method Nokogiri::CSS::Tokenizer#load_file is being passed untrusted user input. Impact ====== A remote attacker could possibly execute arbitrary code with the privileges of the process. Workaround ========== Avoid calling the undocumented method Nokogiri::CSS::Tokenizer#load_file with untrusted user input. Resolution ========== All Nokogiri users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-ruby/nokogiri-1.10.4" References ========== [ 1 ] CVE-2019-5477 https://nvd.nist.gov/vuln/detail/CVE-2019-5477 [ 2 ] Upstream bug https://github.com/sparklemotion/nokogiri/issues/1915 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202006-05 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2020 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5