About the security content of Safari 14.0.3

This document describes the security content of Safari 14.0.3.

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Safari 14.0.3

Released 1 February 2021

WebKit

Available for: macOS Catalina and macOS Mojave

Impact: processing maliciously crafted web content may lead to arbitrary code execution

Description: a use after free issue was addressed with improved memory management.

CVE-2021-1788: Francisco Alonso (@revskills)

WebKit

Available for: macOS Catalina and macOS Mojave

Impact: processing maliciously crafted web content may lead to arbitrary code execution

Description: a type confusion issue was addressed with improved state handling.

CVE-2021-1789: @S0rryMybad of 360 Vulcan Team

WebRTC

Available for: macOS Catalina and macOS Mojave

Impact: A malicious website may be able to access restricted ports on arbitrary servers

Description: A port redirection issue was addressed with additional port validation.

CVE-2021-1799: Gregory Vishnepolsky & Ben Seri of Armis Security, and Samy Kamkar

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