jQuery before 1.9.0 is vulnerable to Cross-site Scripting (XSS) attacks. The jQuery(strInput) function does not differentiate selectors from HTML in a reliable fashion. In vulnerable versions, jQuery determined whether the input was HTML by looking for the '<' character anywhere in the string, giving attackers more flexibility when attempting to construct a malicious payload. In fixed versions, jQuery only deems the input to be HTML if it explicitly starts with the '<' character, limiting exploitability only to attackers who can control the beginning of a string, which is far less common.

A fix for CVE-2012-6708 would introduce backward incompatible changes. Considering the tradeoff between the stability of Amazon Linux 2 and the impact of CVE-2015-9251, a fix will not be provided for Ruby 2.0 in the Amazon Linux 2 Core repository at this time.