What’s Vulnerable › Vulnerabilities

CVE-2016-4583

• Severity: low (CVSS 3.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-07-22 · updated 2026-06-17
• Weakness: CWE-362

Description

WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to bypass the Same Origin Policy and obtain image date from an unintended web site via a timing attack involving an SVG document.

Affected products

• Apple Webkit: all versions
• Webkitgtk+: before 2.12.2 — fixed in 2.12.2

How to fix

Upgrade to a fixed version: Webkitgtk+ 2.12.2. Check the vendor advisory for mitigations.

References

• http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html
• http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html
• http://lists.apple.com/archives/security-announce/2016/Jul/msg00004.html
• http://packetstormsecurity.com/files/138502/WebKitGTK-SOP-Bypass-Information-Disclosure.html
• http://www.securityfocus.com/archive/1/539295/100/0/threaded
• http://www.securityfocus.com/bid/91830
• http://www.securitytracker.com/id/1036343
• https://support.apple.com/HT206900
• https://support.apple.com/HT206902
• https://support.apple.com/HT206905
• http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html
• http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html

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