CVE-2023-32387: Use After Free

Published May 18, 2023
·
Updated

A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.7.7, macOS Monterey 12.6.6, macOS Ventura 13.4. A remote attacker may be able to cause unexpected app termination or arbitrary code execution.

Other sources

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

— Apple

Accessibility. This issue was addressed with improved checks.

— Apple

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

— Apple

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

— Apple

AppleMobileFileIntegrity. This issue was addressed by forcing hardened runtime on the affected binaries at the system level.

— Apple

Credit

Dimitrios Tatsis(Cisco Talos), Mickey Jin@@patch1t, Zitong Wu (吴梓桐)(Zhuhai No), Adam M., Meysam Firouzi@@R00tkitSMM(Mbition Mercedes), Meysam Firouzi@@R00tkitsmm(Trend Micro Zero Day Initiative), hou xuewei vmk msu@@p1ay8y3ar, CertiK SkyFall Team(Pinauten GmbH), Linus Henze(Pinauten GmbH), 08Tc3wBB(Jamf), James Duffy (mangoSecure), Adam Doupé(ASU SEFCOM), Eloi Benoist-Vanderbeken@@elvanderb(Synacktiv), Wojciech Reguła@@_r3ggi(SecuRing), OSS-Fuzz(Google Project Zero), Ned Williamson(Google Project Zero), Jonathan Bar Or(Microsoft), Anurag Bohra(Microsoft), (Microsoft), Michael Pearse(Microsoft), Thijs Alkemade@@xnyhps(Computest Sector 7), Gergely Kalman@@gergely_kalman, Michael DePlante@@izobashi(Trend Micro Zero Day Initiative), Thijs Alkemade(Computest Sector 7), Jonathan Fritz, Arsenii Kostromin (0x3c3e), Julian Szulc, Holger Fuhrmannek(Deutsche Telekom Security GmbH on behalf of BSI), Yiğit Can YILMAZ@@yilmazcanyigit(FFRI Security Inc), Koh M. Nakagawa(FFRI Security Inc), Kirin@@Pwnrin(Offensive Security), Jeff Johnson (underpassapp.com)(Offensive Security), (Offensive Security), Csaba Fitzl@@theevilbit(Offensive Security), Kirin@@Pwnrin, Wenchao Li(Alibaba Group), Xiaolong Bai(Alibaba Group), Mickey Jin@@patch1t(Tencent Security Xuanwu Lab), Zhipeng Huo@@R3dF09(Tencent Security Xuanwu Lab), an anonymous researcher, Khiem Tran, Gergely Kalman@@gergely_kalman(SecuRing), (SecuRing), Wojciech Reguła(SecuRing), Yiğit Can YILMAZ@@yilmazcanyigit, CVE-2023-22809, Satish Panduranga, Ivan Fratric(Google Project Zero), Wojciech Regula(SecuRing), Ignacio Sanmillan@@ulexec, Clément Lecigne(Google's Threat Analysis Group), Donncha Ó Cearbhaill(Amnesty International), Pan ZhenPeng@@Peterpan0927(STAR Labs SG Pte), Gerhard Muth, Sergii Kryvoblotskyi(MacPaw Inc), ABC Research s.r.o.

Affected Software

6 affected componentsFixes available
Apple macOS Big Sur<11.7.7
11.7.7
macOS<12.6.6
12.6.6
macOS Ventura<13.4
13.4
macOS>=11.0.0<11.7.7
macOS>=12.0.0<12.6.6
macOS>=13.0<13.4

Event History

Jun 23, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionWeakness
Data Sourced
via NVD·06:15 PM
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 CVE-2023-32387?

CVE-2023-32387 is a use-after-free vulnerability that has been fixed in macOS Big Sur 11.7.7, macOS Monterey 12.6.6, and macOS Ventura 13.4.

2

What is the severity of CVE-2023-32387?

The severity of CVE-2023-32387 is critical with a CVSS score of 9.8.

3

How does CVE-2023-32387 affect Apple macOS?

CVE-2023-32387 affects various versions of Apple macOS, including Big Sur, Monterey, and Ventura.

4

What is the remedy for CVE-2023-32387?

The remedy for CVE-2023-32387 is to update to the fixed versions: macOS Big Sur 11.7.7, macOS Monterey 12.6.6, or macOS Ventura 13.4.

5

Is there any additional information available for CVE-2023-32387?

Yes, you can find additional information about CVE-2023-32387 in the references provided by Apple: [Link 1](https://support.apple.com/en-us/HT213758), [Link 2](https://support.apple.com/en-us/HT213759), [Link 3](https://support.apple.com/en-us/HT213760).

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