REDHAT-BUG-750306: XSS
First published: Mon Oct 31 2011(Updated: )
A cross-site scripting (XSS) flaw was found in the way the regular expression engine of the JRuby, Java implementation of the Ruby programming language, processed certain invalid UTF-8 byte sequences. A remote attacker could use this flaw to execute arbitrary HTML or web script via specially-crafted input provided to an JRuby application. References: [1] <a href="http://www.jruby.org/2010/04/26/jruby-1-4-1-xss-vulnerability.html">http://www.jruby.org/2010/04/26/jruby-1-4-1-xss-vulnerability.html</a> [2] <a href="https://bugs.gentoo.org/show_bug.cgi?id=317435">https://bugs.gentoo.org/show_bug.cgi?id=317435</a> Proposed upstream solution (is to upgrage to jcodings-v1.0.3): [3] <a href="http://repo1.maven.org/maven2/org/jruby/jcodings/jcodings/1.0.3/jcodings-1.0.3.jar">http://repo1.maven.org/maven2/org/jruby/jcodings/jcodings/1.0.3/jcodings-1.0.3.jar</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Rubygems | <1.4.1 |
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Reference Links
- http://www.jruby.org/2010/04/26/jruby-1-4-1-xss-vulnerability.html
- https://bugs.gentoo.org/show_bug.cgi?id=317435
- http://repo1.maven.org/maven2/org/jruby/jcodings/jcodings/1.0.3/jcodings-1.0.3.jar
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=750310
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=750311
- https://rhn.redhat.com/errata/RHSA-2011-1456.html
- https://bugzilla.redhat.com/show_bug.cgi?id=750306
Frequently Asked Questions
What is the severity of REDHAT-BUG-750306?
REDHAT-BUG-750306 is classified as a high severity vulnerability due to its potential for remote code execution.
How do I fix REDHAT-BUG-750306?
To fix REDHAT-BUG-750306, update JRuby to a version higher than 1.4.1.
What type of vulnerability is REDHAT-BUG-750306?
REDHAT-BUG-750306 is a cross-site scripting (XSS) vulnerability.
What could an attacker do with REDHAT-BUG-750306?
An attacker could exploit REDHAT-BUG-750306 to execute arbitrary HTML or web scripts remotely.
Which software is affected by REDHAT-BUG-750306?
REDHAT-BUG-750306 affects JRuby versions up to, but not including, 1.4.1.
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