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HistoryOct 27, 2021 - 12:00 a.m.

About the security content of Safari 15.1

2021-10-2700:00:00
support.apple.com
214

7.9 High

AI Score

Confidence

High

0.007 Low

EPSS

Percentile

80.5%

About the security content of Safari 15.1

This document describes the security content of Safari 15.1.

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 15.1

Released October 27, 2021

WebKit

Available for: macOS Big Sur and macOS Catalina

Impact: Processing maliciously crafted web content may lead to code execution

Description: A type confusion issue was addressed with improved memory handling.

CVE-2021-31008

Entry added March 31, 2022

WebKit

Available for: macOS Big Sur and macOS Catalina

Impact: Processing maliciously crafted web content may lead to unexpectedly unenforced Content Security Policy

Description: A logic issue was addressed with improved restrictions.

CVE-2021-30887: Narendra Bhati (@imnarendrabhati) of Suma Soft Pvt. Ltd.

WebKit

Available for: macOS Big Sur and macOS Catalina

Impact: A malicious website using Content Security Policy reports may be able to leak information via redirect behavior

Description: An information leakage issue was addressed.

CVE-2021-30888: Prakash (@1lastBr3ath)

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-2021-30889: Chijin Zhou of ShuiMuYuLin Ltd and Tsinghua wingtecher lab

WebKit

Available for: macOS Big Sur and macOS Catalina

Impact: Processing maliciously crafted web content may lead to universal cross site scripting

Description: A logic issue was addressed with improved state management.

CVE-2021-30890: an anonymous researcher

Additional recognition

WebKit

We would like to acknowledge Ivan Fratric of Google Project Zero, Pavel Gromadchuk, and an anonymous researcher for their assistance.

Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information.

Published Date: November 03, 2023

CPENameOperatorVersion
safarilt15.1