CVE-2023-39434: Use After Free

Published Sep 18, 2023
·
Updated

A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 17 and iPadOS 17, watchOS 10, macOS Sonoma 14. Processing web content may lead to arbitrary code execution.

Other sources

Accessibility. This issue was addressed with improved redaction of sensitive information.

— Apple

Airport. A permissions issue was addressed with improved redaction of sensitive information.

— Apple

AMD. A buffer overflow issue was addressed with improved memory handling.

— Apple

AMD. The issue was addressed with improved memory handling.

— Apple

App Store. The issue was addressed with improved handling of protocols.

— Apple

Credit

Anonymous, Dong Jun Kim@@smlijun(AbyssLab), Jong Seong Kim@@nevul37(AbyssLab), Francisco Alonso@@revskills(PK Security), (PK Security), Dohyun Lee@@l33d0hyun(PK Security), Francisco Alonso@@revskills, 이준성(Junsung Lee)(Cross Republic), an anonymous researcher, Jie Ding@@Lime(HKUS3 Lab), zhunki, 이준성(Junsung Lee), Bill Marczak(The Citizen Lab at The University of Toronto's Munk School), Maddie Stone(Google's Threat Analysis Group), Narendra Bhati (twitter.com/imnarendrabhati)(Suma Soft Pvt), Pune (India), Pan ZhenPeng@@Peterpan0927(STAR Labs SG Pte), Michael (Biscuit) Thomas, 张师傅(@京东蓝军), Sei K., Zhipeng Huo@@R3dF09(Tencent Security Xuanwu Lab), Adam M.(SecuRing), (SecuRing), Wojciech Regula(SecuRing), Mickey Jin@@patch1t, Kirin@@Pwnrin, Certik Skyfall Team, Yiğit Can YILMAZ@@yilmazcanyigit, Arsenii Kostromin (0x3c3e), James Hutchins, zer0k, Adam M., Noah Roskin-Frazee, Professor Jason Lau (ZeroClicks.ai Lab), Will Brattain at Trail(Bits), Kirin@@Pwnrin(NorthSea), Csaba Fitzl@@theevilbit(Offensive Security), Antonio Zekic@@antoniozekic(Dataflow Security), Linus Henze(Pinauten GmbH), Tim Michaud@@TimGMichaud(Moveworks), Mohamed GHANNAM@@_simo36, Ye Zhang@@VAR10CK(Baidu Security), w0wbox, Adam M.(BreakPoint Security Research), (BreakPoint Security Research), Ron Masas(BreakPoint Security Research), serkan Gurbuz, Adriatik Raci(Sentry Cybersecurity), Arsenii Kostromin (0x3c3e)(Offensive Security), Joshua Jewett@@JoshJewett33(Offensive Security), (Offensive Security), Brian McNulty(Offensive Security), Claire Houston, Wang Yu(Cyberserval), Tomi Tokics@@tomitokics(iTomsn0w), Kenneth Chew, Abhay Kailasia@@abhay_kailasia(Lakshmi Narain College Of Technology Bhopal), Joseph Ravichandran@@0xjprx(MIT CSAIL), Gergely Kalman@@gergely_kalman, weize she, Berke Kırbaş, Harsh Jaiswal, Certik Skyfall Team(Ant Security Light), pattern-f@@pattern_F_(Ant Security Light), Zweig(Kunlun Lab), Félix Poulin-Bélanger, Luan Herrera@@lbherrera_, Noah Roskin-Frazee (ZeroClicks.ai Lab), James Duffy (mangoSecure), Ron Masas(BreakPoint), Thijs Alkemade@@xnyhps(Computest Sector 7), Andrew Haggard, (AbyssLab), An anonymous researcher(MacEnhance), Jeremy Legendre(MacEnhance), Felix Kratz, Koh M. Nakagawa@@tsunek0h, Meng Zhang (鲸落)(NorthSea), Brian McNulty(Texts), (Texts), Kishan Bagaria(Texts), Michael DePlante@@izobashi(Trend Micro Zero Day Initiative), baba yaga, Serkan Erayabakan(George Mason University), David Kotval(George Mason University), Akincibor(George Mason University), Sina Ahmadi(George Mason University), Billy Tabrizi, Kirin@@Pwnrin(SecuRing), (Ant Security Light), Ferdous Saljooki@@malwarezoo(Jamf Software), Murray Mike, Wojciech Reguła@@_r3ggi, Chris Ross (Zoom), Yishu Wang, Cristian Dinca(Computer Science), Romania, JeongOhKyea(Theori), Halle Winkler, Politepix@@hallewinkler, Noah Roskin-Frazee(Offensive Security), Pr(Offensive Security), Ron Masas(Imperva), Mikko Kenttälä )@@Turmio_(SensorFu), ABC Research s.r.o., Liang Wei(PixiePoint Security), Zhice Yang (ShanghaiTech University), Mikko Kenttälä )@@Turmio_(SensorFu)

Affected Software

10 affected componentsFixes available
Apple macOS Sonoma<14
14
Apple WatchOS<10
10
Apple iOS<17
17
Apple iPadOS<17
17
Apple iPadOS<17.0
Apple iPhone OS<17.0
Apple macOS<14.0
Apple WatchOS<10.0
Apple Safari<17
17
Apple tvOS<17
17

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Apple macOS to a version that resolves this vulnerability.

    Fixed in 14
  2. Upgrade

    Upgrade Apple iOS, iPadOS, and watchOS to a version that resolves this vulnerability.

    Fixed in 10
  3. Upgrade

    Upgrade Apple iOS and iPadOS to a version that resolves this vulnerability.

    Fixed in 17
  4. Upgrade

    Upgrade Apple iOS, iPadOS, and macOS to a version that resolves this vulnerability.

    Fixed in 17
  5. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 17
  6. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 17
  7. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 14
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 17
  9. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 10
  10. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 17
  11. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 17
  12. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 10
  13. Upgrade

    Upgrade macOS Sonoma to a version that resolves this vulnerability.

    Fixed in 14
  14. Upgrade

    Upgrade OpenSSH to a version that resolves this vulnerability.

    Fixed in 9.3p2

Event History

Sep 18, 2023
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Sep 26, 2023
CVE Published
via MITRE·08:14 PM
Data Sourced
via MITRE·08:14 PM
DescriptionWeakness
Sep 29, 2023
Data Sourced
via Red Hat·05:56 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is CVE-2023-39434?

CVE-2023-39434 is a use-after-free vulnerability in WebKit.

2

How does CVE-2023-39434 impact Apple iOS?

CVE-2023-39434 affects Apple iOS versions up to but excluding version 17.

3

How does CVE-2023-39434 impact Apple iPadOS?

CVE-2023-39434 affects Apple iPadOS versions up to but excluding version 17.

4

How does CVE-2023-39434 impact Apple watchOS?

CVE-2023-39434 affects Apple watchOS versions up to but excluding version 10.

5

How does CVE-2023-39434 impact Apple macOS Sonoma?

CVE-2023-39434 affects Apple macOS Sonoma versions up to but excluding version 14.

6

What is the Common Weakness Enumeration (CWE) ID for CVE-2023-39434?

The Common Weakness Enumeration (CWE) ID for CVE-2023-39434 is CWE-416.

7

How can I fix CVE-2023-39434?

To fix CVE-2023-39434, update your Apple device's operating system to a version that is not affected.

Company

Resources

Contact

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