CVE-2023-32433: Use After Free

Published Jul 24, 2023
·
Updated

A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Monterey 12.6.8, iOS 15.7.8 and iPadOS 15.7.8, iOS 16.6 and iPadOS 16.6, tvOS 16.6, macOS Big Sur 11.7.9, macOS Ventura 13.5, watchOS 9.6. An app may be able to execute arbitrary code with kernel privileges.

Other sources

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

— Apple

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

— Apple

AMD. A race condition was addressed with improved state handling.

— Apple

Apple Neural Engine. The issue was addressed with improved memory handling.

— Apple

AppleMobileFileIntegrity. A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions.

— Apple

Credit

an anonymous researcher, Zweig(Kunlun Lab), Kaitao Xie(Alibaba Group), Xiaolong Bai(Alibaba Group), Certik Skyfall Team(Ant Security Light), pattern-f@@pattern_F_(Ant Security Light), Mohamed GHANNAM@@_simo36, Nick Brook, Kirin@@Pwnrin, Wojciech Regula(SecuRing), Kirin@@Pwnrin(SecuRing), (SecuRing), found by OSS-Fuzz, 香农的三蹦子(Pangu Lab), Pan ZhenPeng@@Peterpan0927(STAR Labs SG Pte), Peter Nguyễn Vũ Hoàng@@peternguyen14(STAR Labs SG Pte), Certik Skyfall Team, Valentin Pashkov(Kaspersky), Mikhail Vinogradov(Kaspersky), Georgy Kucherin@@kucher1n(Kaspersky), Leonid Bezvershenko@@bzvr_(Kaspersky), (Kaspersky), Boris Larin@@oct0xor(Kaspersky), Sei K., Zhipeng Huo@@R3dF09(Tencent Security Xuanwu Lab), Noah Roskin-Frazee, Thijs Alkemade(Computest Sector 7), Adam M., Johan Carlsson (joaxcar), Hritvik Taneja, Jason Kim, Jie Jeff Xu, Stephan van Schaik, Daniel Genkin, Yuval Yarom, Narendra Bhati (twitter.com/imnarendrabhati)(Suma Soft Pvt), Pune - India(TU Wien), Valentino Dalla Valle(TU Wien), Pedro Bernardo(TU Wien), Marco Squarcina(TU Wien), (TU Wien), Lorenzo Veronese(TU Wien), Pune - India, Yuhao Hu, Jiming Wang, Jikai Ren, Anonymous(Trend Micro Zero Day Initiative), Francisco Alonso@@revskills, Junsung Lee, 이준성(Junsung Lee)(Cross Republic), Apple, YeongHyeon Choi@@hyeon101010, Mickey Jin@@patch1t, Gergely Kalman@@gergely_kalman, Erhad Husovic, CVE-2023-28319, CVE-2023-28320, CVE-2023-28321, CVE-2023-28322, Bool(YunShangHuaAn), Arsenii Kostromin (0x3c3e), Taavi Eomäe(Zone Media O), Mickey Jin@@patch1t(Trend Micro Zero Day Initiative), (Trend Micro Zero Day Initiative), Michael DePlante@@izobashi(Trend Micro Zero Day Initiative), CVE-2023-1916, Jonathan Bar Or(Microsoft), Emanuele Cozzi(Microsoft), (Microsoft), Michael Pearse(Microsoft), Csaba Fitzl@@theevilbit(Offensive Security), Sandipan Roy, James Duffy (mangoSecure), Michael Cowell, David Hoyt(Hoyt LLC), Wenchao Li(Hangzhou Orange Shield Information Technology Co), Xiaolong Bai(Hangzhou Orange Shield Information Technology Co), Ltd., CVE-2023-1801, Matthew Loewen, CVE-2023-2426, CVE-2023-2609, CVE-2023-2610, Yiğit Can YILMAZ@@yilmazcanyigit, Pr, Yishu Wang, ABC Research s.r.o.

Affected Software

18 affected componentsFixes available
Apple macOS Big Sur<11.7.9
11.7.9
Apple tvOS<16.6
16.6
Apple WatchOS<9.6
9.6
Apple macOS Monterey<12.6.8
12.6.8
Apple macOS Ventura<13.5
13.5
Apple iOS<16.6
16.6
Apple iPadOS<16.6
16.6
Apple iOS<15.7.8
15.7.8
Apple iPadOS<15.7.8
15.7.8
Apple iPadOS<15.7.8
Apple iPadOS>=16.0<16.6
Apple iPhone OS<15.7.8
Apple iPhone OS>=16.0<16.6
Apple macOS>=11.0<11.7.9
Apple macOS>=12.0.0<12.6.8
Apple macOS>=13.0<13.5
Apple tvOS<16.6
Apple WatchOS<9.6

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Apple macOS to a version that resolves this vulnerability.

    Fixed in 11.7.9
  2. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 16.6
  3. Upgrade

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

    Fixed in 9.6
  4. Upgrade

    Upgrade macOS to a version that resolves this vulnerability.

    Fixed in 12.6.8
  5. Upgrade

    Upgrade macOS Ventura to a version that resolves this vulnerability.

    Fixed in 13.5
  6. Upgrade

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

    Fixed in 16.6
  7. Upgrade

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

    Fixed in 16.6
  8. Upgrade

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

    Fixed in 15.7.8
  9. Upgrade

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

    Fixed in 15.7.8
  10. Upgrade

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

    Fixed in 13.5
  11. Upgrade

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

    Fixed in 16.6
  12. Upgrade

    Upgrade macOS Monterey to a version that resolves this vulnerability.

    Fixed in 12.6.8
  13. Upgrade

    Upgrade iOS/iPadOS to a version that resolves this vulnerability.

    Fixed in 15.7.8
  14. Upgrade

    Upgrade iOS/iPadOS to a version that resolves this vulnerability.

    Fixed in 16.6
  15. Upgrade

    Upgrade macOS Big Sur to a version that resolves this vulnerability.

    Fixed in 11.7.9
  16. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 9.6

Event History

Jul 24, 2023
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Jul 26, 2023
CVE Published
via MITRE·11:49 PM
Data Sourced
via MITRE·11:49 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the vulnerability ID?

The vulnerability ID is CVE-2023-32433.

2

What is the severity of CVE-2023-32433?

The severity of CVE-2023-32433 is high with a severity value of 7.8.

3

What is affected by CVE-2023-32433?

macOS Monterey 12.6.8, iOS 15.7.8 and iPadOS 15.7.8, iOS 16.6 and iPadOS 16.6, tvOS 16.6, macOS Big Sur 11.7.9, macOS Ventura 13.5, and watchOS 9.6 are affected by CVE-2023-32433.

4

How can I fix CVE-2023-32433?

Update to the fixed versions: macOS Monterey 12.6.8, iOS 15.7.8 and iPadOS 15.7.8, iOS 16.6 and iPadOS 16.6, tvOS 16.6, macOS Big Sur 11.7.9, macOS Ventura 13.5, and watchOS 9.6.

5

Where can I find more information about CVE-2023-32433?

You can find more information about CVE-2023-32433 on the Apple support page: [CVE-2023-32433](https://support.apple.com/en-us/HT213848).

Company

Resources

Contact

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