Security Resilience

CVE-2023-42299

Memory Safety in Openimageio 2.4.12.0

Public PoCMemory Safety
Published
02 November 2023
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.013 70th percentile
Risk Priority 82 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-42299 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in Openimageio Openimageio. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique NTDS (T1003.003); ranked in the top 30% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2023-42299 is a buffer overflow vulnerability, tracked under CWE-120, that affects OpenImageIO oiio version 2.4.12.0. The flaw resides in the read_subimage_data function and carries a CVSS 3.1 base score of 9.8, reflecting network-accessible attack conditions with no required authentication or user interaction.

A remote attacker can supply a crafted image file that triggers the overflow during subimage data processing, enabling arbitrary code execution or denial of service. The attack requires only that the victim application parse the malicious input, which can occur through any workflow that loads untrusted images with the affected library.

The EPSS score for this CVE stands at 0.1585 with no material increase from its recorded peak, indicating steady but not sharply rising exploitation interest since disclosure.

EU & UK References

Vulnerability Data

Buffer Overflow vulnerability in OpenImageIO oiio v.2.4.12.0 allows a remote attacker to execute arbitrary code and cause a denial of service via the read_subimage_data function.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
T1003.008 /etc/passwd and /etc/shadow Credential Access
Adversaries may attempt to dump the contents of <code>/etc/passwd</code> and <code>/etc/shadow</code> to enable offline password cracking.
T1010 Application Window Discovery Discovery
Adversaries may attempt to get a listing of open application windows.
T1012 Query Registry Discovery
Adversaries may interact with the Windows Registry to gather information about the system, configuration, and installed software.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

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CVE-2026-43909Same product: Openimageio Openimageio
CVE-2026-67549Same product: Openimageio Openimageio
CVE-2024-55192Same product: Openimageio Openimageio
CVE-2026-63422Same product: Openimageio Openimageio
CVE-2026-43908Same product: Openimageio Openimageio
CVE-2026-43907Same product: Openimageio Openimageio
CVE-2026-43903Same product: Openimageio Openimageio
CVE-2026-43904Same product: Openimageio Openimageio

Affected Assets

openimageio
openimageio
2.4.12.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

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Detect
Catch it (NIST detect / respond)

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Harden
Shrink the surface (DISA STIG)

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Validate
Prove the fix (OWASP ASVS)
  • V5.2.1

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-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

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.

ID.RA-01 partial match
blocks

Vulnerability identification processes such as code review or scanning detect classic buffer overflows before exploitation.

PR.PS-02 partial match
blocks

Routine patching replaces vulnerable code containing unchecked buffer copies with corrected versions.

PR.PS-06 partial match
blocks

Secure development practices directly enforce bounds checking and input validation that prevent classic buffer overflows.

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.

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References