CVE-2023-42939: Use After Free

Published Oct 25, 2023
·
Updated

A logic issue was addressed with improved checks. This issue is fixed in iOS 17.1 and iPadOS 17.1. A user's private browsing activity may be unexpectedly saved in the App Privacy Report.

Other sources

Automation. The issue was addressed with improved checks.

— Apple

Contacts. A privacy issue was addressed with improved private data redaction for log entries.

— Apple

Core Recents. The issue was resolved by sanitizing logging

— Apple

CoreAnimation. The issue was addressed with improved memory handling.

— Apple

FairPlay. The issue was addressed with improved bounds checks.

— Apple

Credit

Abhay Kailasia@@abhay_kailasia(Lakshmi Narain College Of Technology Bhopal India), an anonymous researcher, Linus Henze(Pinauten GmbH), inooo, Mickey Jin@@patch1t, Grzegorz Riegel, Talal Haj Bakry(Mysk Inc), Tommy Mysk@@mysk_co(Mysk Inc), Bistrit Dahal, Mingxuan Yang@@PPPF00L(360 Vulnerability Research Institute), happybabywu(360 Vulnerability Research Institute), Guang Gong(360 Vulnerability Research Institute), (360 Vulnerability Research Institute), Adis Alic, Yiğit Can YILMAZ@@yilmazcanyigit, Sam Lakmaker, Kirin@@Pwnrin(SecuRing), Wojciech Regula(SecuRing), (Computer Science), Cristian Dinca(Computer Science), Romania, CVE-2023-42946, Ting Ding, James Mancz, Omar Shibli, Lorenzo Cavallaro, Harry Lewandowski, 이준성(Junsung Lee)(Cross Republic), 이준성(Junsung Lee), Pedro Ribeiro@@pedrib1337(Agile Information Security), Vitor Pedreira@@0xvhp_(Agile Information Security), Kacper Kwapisz@@KKKas_, JZ, Csaba Fitzl@@theevilbit(Offensive Security), Michael (Biscuit) Thomas - @social.lol@@biscuit, Peter Nguyễn Vũ Hoàng@@peternguyen14(STAR Labs SG Pte), Adam M., Zhipeng Huo@@R3dF09(Tencent Security Xuanwu Lab), Noah Roskin-Frazee, Pr, Tomi Tokics@@tomitokics(iTomsn0w), CVE-2023-42823

Affected Software

4 affected componentsFixes available
Apple iOS and iPadOS<17.1
17.1
Apple iOS, iPadOS, and macOS<17.1
17.1
iPadOS<17.1
iPhone OS<17.1

Event History

Oct 25, 2023
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Feb 21, 2024
CVE Published
via MITRE·06:40 AM
Data Sourced
via MITRE·06:40 AM
DescriptionWeakness
Data Sourced
via NVD·07:15 AM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2023-42939?

CVE-2023-42939 is considered a medium severity vulnerability due to its potential impact on user privacy.

2

How do I fix CVE-2023-42939?

To fix CVE-2023-42939, update your device to iOS 17.1 or iPadOS 17.1.

3

What type of issue is CVE-2023-42939?

CVE-2023-42939 is a logic issue that could lead to unexpected saving of private browsing activity.

4

Which devices are affected by CVE-2023-42939?

CVE-2023-42939 affects Apple devices running iOS and iPadOS up to version 17.1.

5

What improvements were made in the fix for CVE-2023-42939?

The fix for CVE-2023-42939 includes improved checks to prevent unintended saving of private browsing information.

Company

Resources

Contact

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