Cyber Resilience

CVE-2023-2953

Memory Safety in Apple Macos 11.0 – 11.7.9

Memory Safety
Published
30 May 2023
Modified
10 January 2025
Patch / advisory
View advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.019 78th percentile
Risk Priority 61 floored blend · peak EPSS

Summary

CVE-2023-2953 is a high-severity NULL Pointer Dereference (CWE-476) vulnerability in Apple Macos. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Endpoint Denial of Service (T1499); ranked in the top 22% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A10:2025 Mishandling of Exceptional Conditions

EU & UK References

Vulnerability Data

A vulnerability was found in openldap. This security flaw causes a null pointer dereference in ber_memalloc_x() function.

CWE(s)
CWE-476

Related Threats

MITRE ATT&CK Enterprise Techniques

T1499 Endpoint Denial of Service Impact
Adversaries may perform Endpoint Denial of Service (DoS) attacks to degrade or block the availability of services to users.
attack.mitre.org →
T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
T1489 Service Stop Impact
Adversaries may stop or disable services on a system to render those services unavailable to legitimate users.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-3212Same product: Netapp H300S
CVE-2023-32252Same product: Netapp H300S
CVE-2024-33600Same product: Netapp Active Iq Unified Manager
CVE-2023-32248Same product: Netapp H300S
CVE-2023-28466Same product: Netapp H300S
CVE-2023-2898Same product: Netapp H300S
CVE-2024-38477Same product: Netapp Clustered Data Ontap
CVE-2023-3338Same product: Netapp Active Iq Unified Manager
CVE-2024-53580Same product class: NAS / storage appliance
CVE-2024-36387Same product class: NAS / storage appliance

Affected Assets

openldap
openldap
2.4
redhat
enterprise linux
8.0, 9.0
apple
macos
11.0 — 11.7.9 · 12.0 — 12.6.8 · 13.0 — 13.5
netapp
active iq unified manager
all versions
netapp
clustered data ontap
all versions
netapp
ontap tools
all versions
netapp
h300s firmware
all versions
netapp
h500s firmware
all versions
netapp
h700s firmware
all versions
netapp
h410s firmware
all versions
+1 more product configuration(s) — see NVD for full list

Mitigating Controls

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 SDLC practices (static analysis, code review, safe coding standards) directly prevent NULL dereference bugs during development.

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.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect NULL dereference defects before release.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC mandates defensive coding practices that can prevent NULL dereferences.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify input validation and pointer-safety rules.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles encourage defensive design that avoids unsafe pointer use.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly require NULL-pointer checks and safe dereference patterns.

References