ET WEB_CLIENT Internet Explorer CTableRowCellsCollectionCacheItem.GetNext Memory Use-After-Free Attempt

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET WEB_CLIENT Internet Explorer CTableRowCellsCollectionCacheItem.GetNext Memory Use-After-Free Attempt";
    flow:established,to_client;
    content:"document.getElementById|28 27|tableid|27 29|.cloneNode"; nocase;
    content:"cells.urns"; nocase; distance:0;
    content:"cells.item"; nocase; distance:0;
    reference:url,dvlabs.tippingpoint.com/blog/2012/03/15/pwn2own-2012-challenge-writeup;
    reference:url,technet.microsoft.com/en-us/security/bulletin/MS10-002;
    reference:bid,37894;
    reference:cve,2010-0248;
    classtype:attempted-user;
    sid:2014463; rev:3;
    metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2012_04_04, cve CVE_2010_0248, deployment Perimeter, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2019_07_26;
)