Cyber Resilience

CVE-2023-3223

Redhat Openshift Container Platform 4.11 … 4.12

Published
27 September 2023
Modified
21 November 2024
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 0.027 84th percentile
Risk Priority 62 floored blend · peak EPSS

Summary

CVE-2023-3223 is a high-severity Memory Allocation with Excessive Size Value (CWE-789) vulnerability in Redhat Enterprise Linux. 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 16% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

A flaw was found in undertow. Servlets annotated with @MultipartConfig may cause an OutOfMemoryError due to large multipart content. This may allow unauthorized users to cause remote Denial of Service (DoS) attack. If the server uses fileSizeThreshold to limit the…

more

file size, it's possible to bypass the limit by setting the file name in the request to null.

CWE(s)
CWE-789NVD-CWE-noinfo

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

CVEs Like This One

CVE-2026-59844Same product: Redhat Enterprise Linux
CVE-2023-6563Same product: Redhat Enterprise Linux
CVE-2023-3171Same product: Redhat Enterprise Linux
CVE-2023-5379Same product: Redhat Jboss Enterprise Application Platform
CVE-2026-12993Same vendor: Redhat
CVE-2026-2575Same vendor: Redhat
CVE-2025-9784Same product: Redhat Enterprise Linux
CVE-2023-6134Same product: Redhat Enterprise Linux
CVE-2023-0264Same product: Redhat Enterprise Linux
CVE-2023-2585Same product: Redhat Enterprise Linux

Affected Assets

redhat
undertow
≤ 2.2.24
redhat
openshift container platform
4.11, 4.12
redhat
openshift container platform for ibm linuxone
4.10, 4.9
redhat
openshift container platform for power
4.10, 4.9
redhat
jboss enterprise application platform text-only advisories
all versions
redhat
single sign-on
7.6, all versions
redhat
jboss enterprise application platform
7.4

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 prevent coding flaws that trust unvalidated size values for allocations.

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 in development can detect and block excessive allocation flaws before deployment.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle includes input validation and size checks that prevent unbounded allocations.

A.8.26 Application security requirements partial match
prevents

Application security requirements mandate bounds checking on size parameters to avoid excessive memory allocation.

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

Secure architecture principles require resource-limit enforcement that mitigates uncontrolled memory requests.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly prohibit allocating memory from untrusted size values without validation.

A.8.6 Capacity management none match
none

Capacity management monitors overall resource use but does not prevent individual allocation bugs.

References