Package Instance

XML Parsing Vulnerability affecting JRuby users
There is a vulnerability in the JDOM backend to ActiveSupport's XML parser. you should upgrade or use one of the work arounds immediately.

Rails Active Support has a possible ReDoS vulnerability in number_to_delimited
### Impact
`NumberToDelimitedConverter` used a regular expression with `gsub!` to insert thousands delimiters.
This could produce quadratic time complexity on long digit strings.

### Releases
The fixed releases are available at the normal locations.

activesupport Cross-site Scripting vulnerability
Cross-site scripting (XSS) vulnerability in `activesupport/lib/active_support/core_ext/string/output_safety.rb` in Ruby on Rails before 2.3.16, 3.0.x before , 3.1.x before 3.1.8, and 3.2.x before 3.2.8 might allow remote attackers to inject arbitrary web script or HTML via vectors involving a ' (quote) character.

Vulnerability in JSON Parser in Ruby on Rails 3.0 and 2.3
There is a vulnerability in the JSON code for Ruby on Rails which allows attackers to bypass authentication systems, inject arbitrary SQL, inject and execute arbitrary code, or perform a DoS attack on a Rails application.

Duplicate
This advisory duplicates another.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The cross-site scripting (XSS) prevention feature in Ruby on Rails 2.x before 2.3.12, 3.0.x before 3.0.8, and 3.1.x before 3.1.0.rc2 does not properly handle mutation of safe buffers, which makes it easier for remote attackers to conduct XSS attacks via crafted strings to an application that uses a problematic string method, as demonstrated by the sub method.

activesupport vulnerable to Denial of Service via large XML document depth
The (1) `jdom.rb` and (2) `rexml.rb` components in Active Support in Ruby on Rails before 3.2.22, 4.1.x before 4.1.11, and 4.2.x before 4.2.2, when JDOM or REXML is enabled, allow remote attackers to cause a denial of service (SystemStackError) via a large XML document depth.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Cross-site scripting (XSS) vulnerability in Ruby on Rails 2.x before 2.2.3, and 2.3.x before 2.3.4, allows remote attackers to inject arbitrary web script or HTML by placing malformed Unicode strings into a form helper.

Exposure of Sensitive Information to an Unauthorized Actor
A certain algorithm in Ruby on Rails 2.1.0 through 2.2.2, and 2.3.x before 2.3.4, leaks information about the complexity of message-digest signature verification in the cookie store, which might allow remote attackers to forge a digest via multiple attempts.

activesupport Cross-site Scripting vulnerability
Cross-site scripting (XSS) vulnerability in `json/encoding.rb` in Active Support in Ruby on Rails 4.1.x before 4.1.11 and 4.2.x before 4.2.2 allows remote attackers to inject arbitrary web script or HTML via a crafted Hash that is mishandled during JSON encoding.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Cross-site scripting (XSS) vulnerability in activesupport/lib/active_support/core_ext/string/output_safety.rb in Ruby on Rails 2.x before 2.3.13, 3.0.x before 3.0.10, and 3.1.x before 3.1.0.rc5 allows remote attackers to inject arbitrary web script or HTML via a malformed Unicode string, related to a "UTF-8 escaping vulnerability."