Cyber Resilience

CVE-2023-32366

Memory Safety in Apple Macos ≤ 11.7.5

Published
10 January 2024
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0021 11th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2023-32366 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Apple Macos. Its CVSS base score is 7.8 (High).

Operationally, ranked at the 11th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.7.5, macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4. Processing a font file may…

more

lead to arbitrary code execution.

CWE(s)

Related Threats

CVEs Like This One

CVE-2024-27873Same product: Apple Ipados
CVE-2023-42871Same product: Apple Ipados
CVE-2023-32397Same product: Apple Ipados
CVE-2022-22587Same product: Apple Ipados
CVE-2023-23531Same product: Apple Ipados
CVE-2022-32917Same product: Apple Ipados
CVE-2023-28206Same product: Apple Ipados
CVE-2023-27936Same product: Apple Ipados
CVE-2021-30900Same product: Apple Ipados
CVE-2024-23214Same product: Apple Ipados

Affected Assets

apple
ipados
≤ 15.7.4 · 16.0 — 16.4
apple
iphone os
≤ 15.7.4 · 16.0 — 16.4
apple
macos
≤ 11.7.5 · 12.0.0 — 12.6.4 · 13.0 — 13.3

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.

ID.RA-01 partial match
prevents

Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.

PR.PS-02 partial match
prevents

Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

detects

Security testing in development and acceptance can detect and prevent out-of-bounds write defects.

prevents

Secure development life cycle mandates practices that prevent out-of-bounds writes.

prevents

Application security requirements can specify bounds-checking and safe memory handling.

prevents

Secure architecture and engineering principles reduce the likelihood of buffer overflows.

prevents

Secure coding directly addresses out-of-bounds writes through language choice and coding standards.

prevents

Change management can enforce review gates that catch unsafe memory operations before deployment.

References