Technical Description

Multiple vulnerabilities have been identified in Apple Safari, which could be exploited by remote attackers to spoof arbitrary web sites or cause a denial of service.

The first issue is caused by an input validation error when handling URLs containing a specially crafted string before the "@" character, which could be exploited by malicious web sites to conduct phishing attacks by spoofing the URL displayed via the address bar.

The second issue is caused by an error when handling malformed "file:" URIs, which could be exploited to crash an affected browser by tricking a user into clicking a specially crafted link.

The third weakness is caused by an error when handling a large number of "document.write()" calls with an overly long argument, which could be exploited to crash an affected browser or exhaust all available memory resources via a specially crafted web page.

Affected Products

Apple Safari version 3.1.1 and prior

Solution

VUPEN Security is not aware of any vendor-supplied patch.

References

http://www.vupen.com/english/advisories/2008/1347
http://es.geocities.com/jplopezy/pruebasafari3.html

Credits

Vulnerabilities reported by Juan Pablo Lopez Yacubian.

ChangeLog

2008-04-24 : Initial release

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