
CVE-2017-0902 – rubygems: DNS hijacking vulnerability
https://notcve.org/view.php?id=CVE-2017-0902
31 Aug 2017 — RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client to download and install gems from a server that the attacker controls. RubyGems 2.6.12 y anteriores es vulnerable a secuestro de DNS, lo que permite a un atacante Man-in-the-Middle (MitM) forzar el cliente RubyGems a que descargue e instale gemas desde un servidor que está bajo el control del atacante. A vulnerability was found where rubygems did not sanitize DNS respon... • http://blog.rubygems.org/2017/08/27/2.6.13-released.html • CWE-138: Improper Neutralization of Special Elements CWE-346: Origin Validation Error CWE-350: Reliance on Reverse DNS Resolution for a Security-Critical Action •

CVE-2017-0899 – rubygems: Escape sequence in the "summary" field of gemspec
https://notcve.org/view.php?id=CVE-2017-0899
31 Aug 2017 — RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications that include terminal escape characters. Printing the gem specification would execute terminal escape sequences. RubyGems 2.6.12 y anteriores es vulnerable a especificaciones de gemas manipuladas maliciosamente que incluyen caracteres de escapada de terminal. Imprimir la especificación de las gemas ejecutaría secuencias de escapada de terminal. A vulnerability was found where rubygems did not properly sanitize gems' ... • http://blog.rubygems.org/2017/08/27/2.6.13-released.html • CWE-94: Improper Control of Generation of Code ('Code Injection') CWE-138: Improper Neutralization of Special Elements CWE-150: Improper Neutralization of Escape, Meta, or Control Sequences •

CVE-2013-4363
https://notcve.org/view.php?id=CVE-2013-4363
17 Oct 2013 — Algorithmic complexity vulnerability in Gem::Version::ANCHORED_VERSION_PATTERN in lib/rubygems/version.rb in RubyGems before 1.8.23.2, 1.8.24 through 1.8.26, 2.0.x before 2.0.10, and 2.1.x before 2.1.5, as used in Ruby 1.9.0 through 2.0.0p247, allows remote attackers to cause a denial of service (CPU consumption) via a crafted gem version that triggers a large amount of backtracking in a regular expression. NOTE: this issue is due to an incomplete fix for CVE-2013-4287. Vulnerabilidad en la complejidad algo... • http://blog.rubygems.org/2013/09/24/CVE-2013-4363.html • CWE-310: Cryptographic Issues •

CVE-2013-4287 – rubygems: version regex algorithmic complexity vulnerability
https://notcve.org/view.php?id=CVE-2013-4287
16 Oct 2013 — Algorithmic complexity vulnerability in Gem::Version::VERSION_PATTERN in lib/rubygems/version.rb in RubyGems before 1.8.23.1, 1.8.24 through 1.8.25, 2.0.x before 2.0.8, and 2.1.x before 2.1.0, as used in Ruby 1.9.0 through 2.0.0p247, allows remote attackers to cause a denial of service (CPU consumption) via a crafted gem version that triggers a large amount of backtracking in a regular expression. Vulnerabilidad en la complejidad algorítmicade Gem :: Versión :: VERSION_PATTERN en lib / rubygems / version.rb... • http://blog.rubygems.org/2013/09/09/CVE-2013-4287.html • CWE-310: Cryptographic Issues CWE-400: Uncontrolled Resource Consumption •

CVE-2012-2126 – rubygems: Two security fixes in v1.8.23
https://notcve.org/view.php?id=CVE-2012-2126
04 Sep 2013 — RubyGems before 1.8.23 does not verify an SSL certificate, which allows remote attackers to modify a gem during installation via a man-in-the-middle attack. RubyGems anteriores a 1.8.23 no verifican un certificado SSL, lo cual permite a atacantes remotos modificar una gema durante la instalación a través de un ataque man-in-the-middle. Red Hat Enterprise MRG is a next-generation IT infrastructure for enterprise computing. MRG offers increased performance, reliability, interoperability, and faster computing ... • http://rhn.redhat.com/errata/RHSA-2013-1203.html • CWE-310: Cryptographic Issues •

CVE-2012-2125 – rubygems: Two security fixes in v1.8.23
https://notcve.org/view.php?id=CVE-2012-2125
04 Sep 2013 — RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers to observe or modify a gem during installation via a man-in-the-middle attack. RubyGems anteriores a 1.8.23 pueden redirigir conexiones HTTPS a HTTP, lo cual facilita a atacantes remotos observar o modificar una gema durante la instalación a través de un ataque man-in-the-middle. Red Hat Enterprise MRG is a next-generation IT infrastructure for enterprise computing. MRG offers increased performance, rel... • http://rhn.redhat.com/errata/RHSA-2013-1203.html •