CVE-2023-5676

Race Condition in Eclipse Openj9 ≤ 0.41.0

Race Condition

Published

15 November 2023

Modified

03 November 2025

Patch / advisory

View advisory

CVSS Score v3.1 4.1

Click a component to see what it means

Raw vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS Score 0.0041 34th percentile

Risk Priority 33 floored blend · peak EPSS

Summary

CVE-2023-5676 is a medium-severity Signal Handler Race Condition (CWE-364) vulnerability in Eclipse Openj9. Its CVSS base score is 4.1 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 34th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2023-57967

Vulnerability Data

In Eclipse OpenJ9 before version 0.41.0, the JVM can be forced into an infinite busy hang on a spinlock or a segmentation fault if a shutdown signal (SIGTERM, SIGINT or SIGHUP) is received before the JVM has finished initializing.

CWE(s): CWE-364 CWE-362

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation

Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.

attack.mitre.org →

Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-10917Same product: Eclipse Openj9

CVE-2025-4447Same product: Eclipse Openj9

CVE-2026-16439Same product: Eclipse Openj9

CVE-2026-6918Same product: Eclipse Openj9

CVE-2023-2597Same product: Eclipse Openj9

CVE-2024-3933Same product: Eclipse Openj9

CVE-2025-12383Same vendor: Eclipse

CVE-2024-7589Shared CWE-362, CWE-364

CVE-2024-6387Shared CWE-362, CWE-364

CVE-2023-1285Shared CWE-362, CWE-364

Affected Assets

eclipse

openj9

≤ 0.41.0

Mitigating Controls

Control response

Prevent

Stop it (NIST 800-53)

—

Detect

Catch it (NIST detect / respond)

—

Harden

Shrink the surface (DISA STIG)

—

Validate

Prove the fix (OWASP ASVS)

V10.4.2
V10.4.5
V15.1.3
V15.4.1

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.

AU-8 Time Stamps

addresses: CWE-362

Accurate timestamps from internal clocks enable detection of race conditions by providing reliable event ordering in audit logs.

PL-6 Security-related Activity Planning

addresses: CWE-362

Coordination of concurrent security activities reduces the probability that shared resources will be accessed simultaneously without proper synchronization.

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 directly prevent introduction of signal-handler race conditions during coding and review.

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 signal-handler race conditions before release.

A.8.25 Secure development life cycle partial match

prevents

Secure SDLC practices can require avoidance of unsafe signal handling patterns.

A.8.26 Application security requirements partial match

prevents

Application security requirements can specify thread-safety and locking rules, but do not prescribe implementation details.

A.8.27 Secure system architecture and engineering principles partial match

degrades

Secure architecture principles can mandate safe concurrency and signal design.