CVE-2023-32373: Apple Multiple Products WebKit Use-After-Free Vulnerability

Published May 18, 2023
·
Updated

A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

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

Apple iOS, iPadOS, macOS, tvOS, watchOS, and Safari WebKit contain a use-after-free vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

— CISA

Credit

James Duffy (mangoSecure), Kirin@@Pwnrin, Arsenii Kostromin (0x3c3e), 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), Adam M., 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, Dimitrios Tatsis(Cisco Talos), Mickey Jin@@patch1t, Zitong Wu (吴梓桐)(Zhuhai No), 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), 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, 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), Sergii Kryvoblotskyi(MacPaw Inc), ABC Research s.r.o., (Google Project Zero), Jiwon Park, Mohamed GHANNAM@@_simo36, Amat Cama(Vigilant Labs)

Affected Software

28 affected componentsFixes available
ubuntu/webkit2gtk<2.40.2
2.40.2
ubuntu/webkit2gtk<2.40.4-0ubuntu0.22.04.1
2.40.4-0ubuntu0.22.04.1
ubuntu/webkit2gtk<2.40.4-0ubuntu0.23.04.1
2.40.4-0ubuntu0.23.04.1
debian/webkit2gtk<=2.36.4-1~deb10u1, <=2.38.6-0+deb10u1
2.42.2-1~deb11u12.42.5-1~deb11u12.42.2-1~deb12u12.42.5-1~deb12u12.42.5-1
debian/wpewebkit<=2.38.6-1~deb11u1, <=2.38.6-1
2.42.5-12.42.5-1.1
Apple Multiple Products
Apple tvOS<16.5
16.5
Apple WatchOS<9.5
9.5
Apple macOS Ventura<13.4
13.4
Apple Safari<16.5
16.5
Apple iOS<16.5
16.5
Apple iPadOS<16.5
16.5
Apple iOS<15.7.6
15.7.6
Apple iPadOS<15.7.6
15.7.6
Apple Safari<16.5
Apple iPadOS<15.7.6
Apple iPadOS>=16.0<16.5
Apple iPhone OS>=15.0<15.7.6
Apple iPhone OS>=16.0<16.5
Apple macOS<13.4
Apple tvOS<16.5
Apple WatchOS<9.5
redhat Enterprise Linux=6.0
redhat Enterprise Linux=7.0
redhat Enterprise Linux=8.0
redhat Enterprise Linux=9.0
WebKitGTK Webkitgtk\+<2.42.3
Apple iPhone OS>=15.0.0<15.7.6

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.40.2
  2. Upgrade

    Upgrade ubuntu/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.40.4-0ubuntu0.22.04.1
  3. Upgrade

    Upgrade ubuntu/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.40.4-0ubuntu0.23.04.1
  4. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.42.2-1~deb11u1Fixed in 2.42.5-1~deb11u1Fixed in 2.42.2-1~deb12u1Fixed in 2.42.5-1~deb12u1Fixed in 2.42.5-1
  5. Upgrade

    Upgrade debian/wpewebkit to a version that resolves this vulnerability.

    Fixed in 2.42.5-1Fixed in 2.42.5-1.1
  6. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 16.5
  7. Upgrade

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

    Fixed in 9.5
  8. Upgrade

    Upgrade macOS Ventura to a version that resolves this vulnerability.

    Fixed in 13.4
  9. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 16.5
  10. Upgrade

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

    Fixed in 16.5
  11. Upgrade

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

    Fixed in 16.5
  12. Upgrade

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

    Fixed in 15.7.6
  13. Upgrade

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

    Fixed in 15.7.6
  14. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.42.2-1~deb11u1
  15. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.42.5-1~deb11u1
  16. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.42.2-1~deb12u1
  17. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.42.5-1~deb12u1
  18. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.42.5-1
  19. Upgrade

    Upgrade debian/wpewebkit to a version that resolves this vulnerability.

    Fixed in 2.42.5-1
  20. Upgrade

    Upgrade debian/wpewebkit to a version that resolves this vulnerability.

    Fixed in 2.42.5-1.1

Event History

May 22, 2023
CVE Published
via CISA·12:00 AM
Known Exploited
via CISA·12:00 AM
May 23, 2023
Data Sourced
via Red Hat·06:29 AM
DescriptionSeverityAffected Software
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
Jan 12, 2024
Data Sourced
via Launchpad·12:20 AM
Description

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-2023-32373?

CVE-2023-32373 is a use-after-free vulnerability in Apple Multiple Products WebKit.

2

What is the severity of CVE-2023-32373?

The severity of CVE-2023-32373 is high with a CVSS score of 8.8.

3

Which software versions are affected by CVE-2023-32373?

The affected software versions include watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5, and iPadOS 16.5.

4

How can I fix CVE-2023-32373?

To fix CVE-2023-32373, update your software to the fixed versions: watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5, and iPadOS 16.5.

5

Where can I find more information about CVE-2023-32373?

You can find more information about CVE-2023-32373 on the Apple support website: [Link](https://support.apple.com/en-us/HT213757), [Link](https://support.apple.com/en-us/HT213758), [Link](https://support.apple.com/en-us/HT213761).

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