Apple Safari up to 5.1.7 WebKit buffer overflow

VulDB: Apple Safari up to 5.1.7 WebKit buffer overflow

General

Apple

scipID: 5829
Affected: Apple Safari up to 5.1.7
Published: 07/25/2012 (Martin Barbella)
Risk: critical
Entry: 90.3% complete
Created: 08/03/2012
Updated: 09/03/2012

Summary

A vulnerability, which was classified as critical, was found in Apple Safari up to 5.1.7. This affects an unknown function of the component WebKit. The manipulation with an unknown input leads to a buffer overflow vulnerability. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 07/25/2012 by Martin Barbella with Google Chrome Security Team as HT5400 as knowledge base article (Apple Security Announce). The advisory is shared for download at support.apple.com. The vendor cooperated in the coordination of the public release. This vulnerability is uniquely identified as CVE-2012-3638 since 06/19/2012. The exploitability is known to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a private exploit is available.

Upgrading to version 6 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The vulnerability is also documented in the databases at OSVDB (84172) and Secunia (SA50058).