Provide references for CVE-2011-4231.
Where can I find more information about CVE-2011-4231?
References are available at: http://www.cisco.com/en/US/docs/ios/ios_xe/3/release/notes/asr1k_caveats_34s.html, http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-4MCAVS.html.