Are these CVEs relevant for our webkit versions?

http://support.apple.com/en-us/HT6596

This document describes the security content of 
Safari 8.0.1, Safari 7.1.1, and Safari 6.2.1.

WebKit

Available for: OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, OS X Yosemite v10.10.1

Impact: Style sheets are loaded cross-origin which may allow for data exfiltration

Description: An SVG loaded in an img element could load a CSS file cross-origin. This issue was addressed through enhanced blocking of external CSS references in SVGs.

    CVE-ID

    CVE-2014-4465 : Rennie deGraaf of iSEC Partners

WebKit

Available for: OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, OS X Yosemite v10.10.1

Impact: Visiting a website that frames malicious content may lead to UI spoofing

Description: A UI spoofing issue existed in the handling of scrollbar boundaries. This issue was addressed through improved bounds checking.

    CVE-ID

    CVE-2014-1748 : Jordan Milne

WebKit

Available for: OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, OS X Yosemite v10.10.1

Impact: Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution

Description: Multiple memory corruption issues existed in WebKit. These issues were addressed through improved memory handling.

    CVE-ID

    CVE-2014-4452

    CVE-2014-4459

    CVE-2014-4466 : Apple

    CVE-2014-4468 : Apple

    CVE-2014-4469 : Apple

    CVE-2014-4470 : Apple

    CVE-2014-4471 : Apple

    CVE-2014-4472 : Apple

    CVE-2014-4473 : Apple

    CVE-2014-4474 : Apple

    CVE-2014-4475 : Apple