- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202003-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: OpenID library for Ruby: Server Side Request Forgery Date: March 14, 2020 Bugs: #698464 ID: 202003-09 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability in OpenID library for Ruby at worst might allow an attacker to bypass authentication. Background ========== A Ruby library for verifying and serving OpenID identities. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-ruby/ruby-openid < 2.9.2 >= 2.9.2 Description =========== It was discovered that OpenID library for Ruby performed discovery first, and then verification. Impact ====== A remote attacker could possibly change the URL used for discovery and trick the server into connecting to the URL. This server in turn could be a private server not publicly accessible. In addition, if the client that uses this library discloses connection errors, this in turn could disclose information from the private server to the attacker. Workaround ========== There is no known workaround at this time. Resolution ========== All ruby-openid users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-ruby/ruby-openid-2.9.2" References ========== [ 1 ] CVE-2019-11027 https://nvd.nist.gov/vuln/detail/CVE-2019-11027 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202003-09 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