Public Date:
892870: CVE-2013-0156 rubygem-activesupport: Multiple vulnerabilities in parameter parsing in ActionPack

The MITRE CVE dictionary describes this issue as:

active_support/core_ext/hash/conversions.rb in Ruby on Rails before 2.3.15, 3.0.x before 3.0.19, 3.1.x before 3.1.10, and 3.2.x before 3.2.11 does not properly restrict casts of string values, which allows remote attackers to conduct object-injection attacks and execute arbitrary code, or cause a denial of service (memory and CPU consumption) involving nested XML entity references, by leveraging Action Pack support for (1) YAML type conversion or (2) Symbol type conversion.

Find out more about CVE-2013-0156 from the MITRE CVE dictionary dictionary and NIST NVD.


For details of affected products and workarounds see

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 7.5
Base Metrics AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Subscription Asset Manager for RHEL 6 Server RHSA-2013:0154 2013-01-10
Red Hat OpenShift Enterprise Client Tools RHSA-2013:0153 2013-01-10
CloudForms System Engine for RHEL 6 Server RHSA-2013:0155 2013-01-10