The WebCore::HTMLLinkElement::process function in WebCore/html/HTMLLinkElement.cpp in WebKit, as used in Apple Safari before 5.0.3 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.3 on Mac OS X 10.4; webkitgtk before 1.2.6; and possibly other products does not verify whether DNS prefetching is enabled when processing an HTML LINK element, which allows remote attackers to bypass intended access restrictions, as demonstrated by an HTML e-mail message that uses a LINK element for X-Confirm-Reading-To functionality.

Integer overflow in the Text::wholeText method in dom/Text.cpp in WebKit, as used in Apple Safari before 5.0.3 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.3 on Mac OS X 10.4; webkitgtk before 1.2.6; and possibly other products allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving Text objects.

Use-after-free vulnerability in WebKit in Apple Safari before 5.0.3 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.3 on Mac OS X 10.4, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving element attributes.

WebKit in Apple Safari before 5.0.3 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.3 on Mac OS X 10.4, does not properly handle the History object, which allows remote attackers to spoof the location bar's URL or add URLs to the history via a cross-origin attack.

WebKit in Apple Safari before 5.0.3 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.3 on Mac OS X 10.4, does not properly perform a cast of an unspecified variable during processing of inline styling, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted web site.

WebKit in Apple Safari before 5.0.3 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.3 on Mac OS X 10.4, does not properly perform a cast of an unspecified variable during processing of editing commands, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted web site.

Integer underflow in WebKit in Apple Safari before 5.0.3 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.3 on Mac OS X 10.4, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving WebSockets. NOTE: this may overlap CVE-2010-3254.

The JavaScript implementation in WebKit in Apple Safari before 5.0.3 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.3 on Mac OS X 10.4, uses a weak algorithm for generating values of random numbers, which makes it easier for remote attackers to track a user by predicting a value, a related issue to CVE-2008-5913 and CVE-2010-3171.

Integer overflow in WebKit in Apple Safari before 5.0.3 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.3 on Mac OS X 10.4, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted string.

Use-after-free vulnerability in WebKit in Apple Safari before 5.0 on Mac OS X 10.5 through 10.6 and Windows, Safari before 4.1 on Mac OS X 10.4, and Safari on Apple iPhone OS allows remote attackers to execute arbitrary code or cause a denial of service (application crash), or read the SMS database or other data, via vectors related to "attribute manipulation," as demonstrated by Vincenzo Iozzo and Ralf Philipp Weinmann during a Pwn2Own competition at CanSecWest 2010.

Multiple unspecified vulnerabilities in WebKit in Apple Safari before 4.0.4 on Windows allow remote FTP servers to execute arbitrary code, cause a denial of service (application crash), or obtain sensitive information via a crafted directory listing in a reply.

Apple Safari before 4.0.4 does not properly implement certain (1) Open Image and (2) Open Link menu options, which allows remote attackers to read local HTML files via a crafted web site.

The HTMLMediaElement::loadResource function in html/HTMLMediaElement.cpp in WebCore in WebKit before r49480, as used in Apple Safari before 4.0.4 on Mac OS X, does not perform the expected callbacks for HTML 5 media elements that have external URLs for media resources, which allows remote attackers to trigger sub-resource requests to arbitrary web sites via a crafted HTML document, as demonstrated by an HTML e-mail message that uses a media element for X-Confirm-Reading-To functionality, aka rdar problem 7271202.

Integer overflow in ColorSync in Apple Mac OS X 10.4.11 and 10.5.8, and Safari before 4.0.4 on Windows, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted ColorSync profile embedded in an image, leading to a heap-based buffer overflow.

WebKit in Apple Safari before 4.0.3 does not properly restrict the URL scheme of the pluginspage attribute of an EMBED element, which allows user-assisted remote attackers to launch arbitrary file: URLs and obtain sensitive information via a crafted HTML document.

Incomplete blacklist vulnerability in WebKit in Apple Safari before 4.0.3, as used on iPhone OS before 3.1, iPhone OS before 3.1.1 for iPod touch, and other platforms, allows remote attackers to spoof domain names in URLs, and possibly conduct phishing attacks, via unspecified homoglyphs.

Buffer overflow in WebKit in Apple Safari before 4.0.3 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via crafted floating-point numbers.

WebKit in Apple Safari before 4.0.2, as used on iPhone OS before 3.1, iPhone OS before 3.1.1 for iPod touch, and other platforms; KHTML in kdelibs in KDE; QtWebKit (aka Qt toolkit); and possibly other products do not properly handle numeric character references, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted HTML document.

Cross-site scripting (XSS) vulnerability in WebKit in Apple Safari before 4.0.2, as used on iPhone OS before 3.1, iPhone OS before 3.1.1 for iPod touch, and other platforms, allows remote attackers to inject arbitrary web script or HTML via vectors related to parent and top objects.

Apple Safari does not require a cached certificate before displaying a lock icon for an https web site, which allows man-in-the-middle attackers to spoof an arbitrary https site by sending the browser a crafted (1) 4xx or (2) 5xx CONNECT response page for an https request sent through a proxy server.