Apple Safari up to 5.1.7 WebKit buffer overflow

VulDB: Apple Safari up to 5.1.7 WebKit buffer overflow

General

Apple

scipID: 5831
Affected: Apple Safari up to 5.1.7
Published: 07/25/2012 (miaubiz)
Risk: critical
Entry: 87.6% complete
Created: 08/03/2012
Updated: 09/03/2012

Summary

A vulnerability was found in Apple Safari up to 5.1.7. It has been rated as critical. This issue affects an unknown function of the component WebKit. The manipulation with an unknown input leads to a buffer overflow vulnerability. Impacted is confidentiality, integrity, and availability.

The weakness was released 07/25/2012 by miaubiz as HT5400 as knowledge base article (Apple Security Announce). The advisory is shared for download at support.apple.com. The public release was coordinated with Apple. The identification of this vulnerability is CVE-2012-3640 since 06/19/2012. The exploitability is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful 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 (84174) and Secunia (SA50058).