About the security content of Safari 15.2
This document describes the security content of Safari 15.2.
About Apple security updates
For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.
Apple security documents reference vulnerabilities by CVE-ID when possible.
For more information about security, see the Apple Product Security page.
Safari 15.2
WebKit
Available for: macOS Big Sur and macOS Catalina
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A buffer overflow issue was addressed with improved memory handling.
CVE-2021-30934: Dani Biro
WebKit
Available for: macOS Big Sur and macOS Catalina
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-2021-30936: Chijin Zhou of ShuiMuYuLin Ltd and Tsinghua wingtecher lab
CVE-2021-30951: Pangu via Tianfu Cup
WebKit
Available for: macOS Big Sur and macOS Catalina
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: An integer overflow was addressed with improved input validation.
CVE-2021-30952: @18f and @jq0904 of DBAPP Security‘s weibin lab via Tianfu Cup
WebKit
Available for: macOS Big Sur and macOS Catalina
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A race condition was addressed with improved state handling.
CVE-2021-30984: Kunlun Lab via Tianfu Cup
WebKit
Available for: macOS Big Sur and macOS Catalina
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: An out-of-bounds read was addressed with improved bounds checking.
CVE-2021-30953: Jianjun Dai of 360 Vulnerability Research Institute via Tianfu Cup
WebKit
Available for: macOS Big Sur and macOS Catalina
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: A type confusion issue was addressed with improved memory handling.
CVE-2021-30954: Kunlun Lab via Tianfu Cup
Additional recognition
WebKit
We would like to acknowledge Peter Snyder of Brave and Soroush Karami for their assistance.
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