CVE-2011-2197

Description

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.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.44%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://groups.google.com/group/rubyonrails-security/msg/663b600d4471e0d4?dmode=source&output=gplain patch mailing list
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062090.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062514.html vendor advisory
http://weblog.rubyonrails.org/2011/6/8/potential-xss-vulnerability-in-ruby-on-rails-applications patch
http://secunia.com/advisories/44789 third party advisory vendor advisory
http://openwall.com/lists/oss-security/2011/06/09/2 patch mailing list
http://openwall.com/lists/oss-security/2011/06/13/9 patch mailing list

Frequently Asked Questions

What is the severity of CVE-2011-2197?
CVE-2011-2197 has been scored as a medium severity vulnerability.
How to fix CVE-2011-2197?
To fix CVE-2011-2197, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-2197 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-2197 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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