Cyber Resilience

CVE-2023-33460

Fedoraproject Fedora 37 … 38

Public PoC
Published
06 June 2023
Modified
08 January 2025
Patch / advisory
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.011 63th percentile
Risk Priority 52 floored blend · peak EPSS

Summary

CVE-2023-33460 is a medium-severity Missing Release of Memory after Effective Lifetime (CWE-401) vulnerability in Fedoraproject Fedora. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Endpoint Denial of Service (T1499); ranked in the top 37% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability Data

There's a memory leak in yajl 2.1.0 with use of yajl_tree_parse function. which will cause out-of-memory in server and cause crash.

CWE(s)

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.
T1499.003 Application Exhaustion Flood Impact
Adversaries may target resource intensive features of applications to cause a denial of service (DoS), denying availability to those applications.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-2602Same product: Debian Debian Linux
CVE-2025-38344Same product: Debian Debian Linux
CVE-2025-39756Same product: Debian Debian Linux
CVE-2024-26839Same product: Debian Debian Linux
CVE-2024-36946Same product: Debian Debian Linux
CVE-2025-38300Same product: Debian Debian Linux
CVE-2024-27388Same product: Debian Debian Linux
CVE-2025-37989Same product: Debian Debian Linux
CVE-2025-38444Same product: Debian Debian Linux
CVE-2024-26833Same product: Debian Debian Linux

Affected Assets

yajl project
yajl
2.1.0
fedoraproject
fedora
37, 38
debian
debian linux
10.0

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 directly enforce proper memory allocation/deallocation via coding standards, reviews, and tooling.

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.

finds

Security testing in development can detect unreleased memory, providing partial coverage of the weakness.

prevents

Secure development life cycle mandates memory-management practices that reduce missing-release defects.

prevents

Application security requirements can specify explicit memory-release rules, partially mitigating the weakness.

prevents

Secure system architecture and engineering principles include resource-management guidelines that address memory leaks.

prevents

Secure coding standards directly require proper allocation/deallocation, covering most of this weakness.

finds

Capacity management may detect memory exhaustion symptoms but does not prevent the coding flaw.

References