A security patch has been issued by Apple yesterday for their Safari web browser according to Information Week.

One of the four vulnerabilities is described by Apple as, “A heap buffer overflow exists in WebKit’s handling of JavaScript regular expressions. The issue may be triggered via JavaScript when processing regular expressions with large, nested repetition counts. This may lead to an unexpected application termination or arbitrary code execution.”

Two of the vulnerabilities are only applicable to the Windows version of the web browser.

Users can get the patch either by downloading it on Apple’s site or through the Software Update function of Mac OS X.

Source: Information Week