On 5th of December Apple released security updates to address vulnerabilities in Safari and some of these vulnerabilities can be used by the attackers to take control of unpatched system. The below you can see the following vulnerabilities were fixed.
Happy patching!
Safari
Impact: Visiting a malicious website may lead to address bar spoofing
Description: A logic issue was addressed with improved state management.
CVE-2018-4440: Wenxu Wu of Tencent Security Xuanwu Lab (xlab.tencent.com)
Impact: Visiting a malicious website may lead to user interface spoofing
Description: A logic issue was addressed with improved validation.
CVE-2018-4439: xisigr of Tencent’s Xuanwu Lab (tencent.com)
Impact: A user may be unable to fully delete browsing history
Description: “Clear History and Website Data” did not clear the history. The issue was addressed with improved data deletion.
CVE-2018-4445: William Breuer
WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
CVE-2018-4437: HyungSeok Han, DongHyeon Oh, and Sang Kil Cha of KAIST Softsec Lab, Korea
CVE-2018-4464: HyungSeok Han, DongHyeon Oh, and Sang Kil Cha of KAIST Softsec Lab, Korea
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A memory corruption issue was addressed with improved memory handling.
CVE-2018-4441: lokihardt of Google Project Zero
CVE-2018-4442: lokihardt of Google Project Zero
CVE-2018-4443: lokihardt of Google Project Zero
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A logic issue existed resulting in memory corruption. This was addressed with improved state management.
CVE-2018-4438: lokihardt of Google Project Zero