CVE-2023-32434: Apple Multiple Products Integer Overflow Vulnerability

Published Jun 21, 2023
·
Updated

Kernel. An integer overflow was addressed with improved input validation.

Other sources

Apple iOS. iPadOS, macOS, and watchOS contain an integer overflow vulnerability that could allow an application to execute code with kernel privileges.

— CISA

An integer overflow was addressed with improved input validation. This issue is fixed in watchOS 9.5.2, macOS Big Sur 11.7.8, iOS 15.7.7 and iPadOS 15.7.7, macOS Monterey 12.6.7, watchOS 8.8.1, iOS 16.5.1 and iPadOS 16.5.1, macOS Ventura 13.4.1. An app may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.7.

Credit

Georgy Kucherin@@kucher1n, Leonid Bezvershenko@@bzvr_, Boris Larin@@oct0xor, Valentin Pashkov(Kaspersky), Georgy Kucherin@@kucher1n(Kaspersky), Leonid Bezvershenko@@bzvr_(Kaspersky), Boris Larin@@oct0xor(Kaspersky), (Kaspersky), an anonymous researcher

Affected Software

19 affected componentsFixes available
Apple Multiple Products
Apple macOS Big Sur<11.7.8
11.7.8
Apple WatchOS<8.8.1
8.8.1
Apple WatchOS<9.5.2
9.5.2
Apple macOS Monterey<12.6.7
12.6.7
Apple macOS Ventura<13.4.1
13.4.1
Apple iOS<16.5.1
16.5.1
Apple iPadOS<16.5.1
16.5.1
Apple iOS<15.8
15.8
Apple iPadOS<15.8
15.8
Apple iPadOS<15.7.7
Apple iPadOS>=16.0<16.5.1
Apple iPhone OS<15.7.7
Apple iPhone OS>=16.0<16.5.1
Apple macOS>=11.0<11.7.8
Apple macOS>=12.0.0<12.6.7
Apple macOS>=13.0<13.4.1
Apple WatchOS<8.8.1
Apple WatchOS>=9.0<9.5.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Apple macOS to a version that resolves this vulnerability.

    Fixed in 11.7.8
  2. Upgrade

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

    Fixed in 8.8.1
  3. Upgrade

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

    Fixed in 9.5.2
  4. Upgrade

    Upgrade macOS to a version that resolves this vulnerability.

    Fixed in 12.6.7
  5. Upgrade

    Upgrade macOS Ventura to a version that resolves this vulnerability.

    Fixed in 13.4.1
  6. Upgrade

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

    Fixed in 16.5.1
  7. Upgrade

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

    Fixed in 16.5.1
  8. Upgrade

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

    Fixed in 15.8
  9. Upgrade

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

    Fixed in 15.8
  10. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 9.5.2
  11. Upgrade

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

    Fixed in 11.7.8
  12. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 15.7.7
  13. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 15.7.7
  14. Upgrade

    Upgrade macOS Monterey to a version that resolves this vulnerability.

    Fixed in 12.6.7
  15. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 8.8.1
  16. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 16.5.1
  17. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 16.5.1

Event History

Jun 23, 2023
CVE Published
via MITRE·12:00 AM
Known Exploited
via CISA·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionWeakness
Data Sourced
via NVD·06:15 PM
DescriptionSeverityWeaknessAffected Software
Dec 27, 2023
News Published
02:14 PM
Mar 4, 2026
News Published
via The Register·02:18 PM
News Published
via The Register·02:23 PM
Mar 26, 2026
News Published
via BleepingComputer·01:10 PM
News Published
via BleepingComputer·01:10 PM

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-2023-32434?

The severity of CVE-2023-32434 is high with a CVSS score of 7.8.

2

Which products are affected by CVE-2023-32434?

The affected products include Apple Multiple Products, watchOS, macOS Big Sur, iOS, and iPadOS.

3

How can I fix CVE-2023-32434 on watchOS?

You can fix CVE-2023-32434 on watchOS by updating to version 9.5.2 or later.

4

How can I fix CVE-2023-32434 on macOS Big Sur?

You can fix CVE-2023-32434 on macOS Big Sur by updating to version 11.7.8 or later.

5

Where can I find more information about CVE-2023-32434?

You can find more information about CVE-2023-32434 on the Apple support website.

Company

Resources

Contact

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