CVE-2013-4164

Desbordamiento de buffer basado en memoria dinámica en Ruby 1.8, 1.9 anteriores a 1.9.3-p484, 2.0 anteriores a 2.0.0-p353, 2.1 anteriores a 2.1.0 preview2, y "trunk" anteriores a la revisión 43780 permite a atacatnes dependientes del contexto causar denegación de servicio (segmentation fault) y posiblemente ejecutar código arbitrario a través de una cadena de texto que es convertida a un número en punto flotante, como demostrado utilizando (1) el método to_f o (2) JSON.parse.

Red Hat CloudForms Management Engine delivers the insight, control, and automation enterprises need to address the challenges of managing virtual environments, which are far more complex than physical ones. This technology enables enterprises with existing virtual infrastructures to improve visibility and control, and those just starting virtualization deployments to build and operate a well-managed virtual infrastructure. A buffer overflow flaw was found in the way Ruby parsed floating point numbers from their text representation. If an application using Ruby accepted untrusted input strings and converted them to floating point numbers, an attacker able to provide such input could cause the application to crash or, possibly, execute arbitrary code with the privileges of the application.