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Full vulnerability report · 2023
CVE-2023-2253High confidence

A flaw was found in the `/v2/_catalog` endpoint in distribution/distribution, which accepts a parameter to control the maximum number of records returned (query string: `n`)

n/a · distribution/distribution

6.5MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-1561

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
01

What, why and how

A flaw was found in the `/v2/_catalog` endpoint in distribution/distribution, which accepts a parameter to control the maximum number of records returned (query string: `n`). This vulnerability allows a malicious user to submit an unreasonably large value for `n,` causing the allocation of a massive string array, possibly causing a denial of service through excessive use of memory.

What

A flaw was found in the `/v2/_catalog` endpoint in distribution/distribution, which accepts a parameter to control the maximum number of records returned (query string: `n`). This vulnerability allows a malicious user to submit an unreasonably large value for `n,` causing the allocation of a massive string array, possibly causing a denial of service through excessive use of memory.

Why

The behavior of this function is undefined unless its control parameter is set to a specific value.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

What

A flaw was found in the `/v2/_catalog` endpoint in distribution/distribution, which accepts a parameter to control the maximum number of records returned (query string: `n`). This vulnerability allows a malicious user to submit an unreasonably large value for `n,` causing the allocation of a massive string array, possibly causing a denial of service through excessive use of memory.

Why

The behavior of this function is undefined unless its control parameter is set to a specific value.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Undefined Behavior for Input to API → disrupt the affected service
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-475 ↗

CWE-475: Undefined Behavior for Input to API. The behavior of this function is undefined unless its control parameter is set to a specific value.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkDenial of serviceCWE-475
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2024-0794Dell ECS: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Dell ECS ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode mit Administratorrechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren, einen Cross-Site-Scripting-Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service Zustand herbeizuführen.

Official advisory
BSI · German · WID-SEC-W-2023-2388Red Hat OpenShift: Schwachstelle ermöglicht Denial of Service

Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Red Hat OpenShift ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0199Multiples vulnérabilités dans les produits VMware

d?id=CVE-2023-21954 Référence CVE CVE-2023-21967 https://www.cve.org/CVERecord?id=CVE-2023-21967 Référence CVE CVE-2023-21968 https://www.cve.org/CVERecord?id=CVE-2023-21968 Référence CVE CVE-2023-22006 https://www.cve.org/CVERecord?id=CVE-2023-22006 Référence CVE CVE-2023-22036 https://www.cve.org/CVERecord?id=CVE-2023-22036 Référence CVE CVE-2023-22041 https://www.cve.org/CVERecord?id=CVE-2023-22041 Référence CVE CVE-2023-22045 https://www.cve.org/CVERecord?id=CVE-2023-22045 Référence CVE CVE-2023-22049 https://www.cve.org/CVERecord?id=CVE-2023-22049 Référence CVE CVE-2023-22081 https://www.cve.org/CVERecord?id=CVE-2023-22081 Référence CVE CVE-2023-2253 https://www.cve.org/CVERecord?id=CVE-2023-2253 Référence CVE CVE-2023-23914 https://www.cve.org/CVERecord?id=CVE-2023-23914 Référence CVE CVE-2023-23915 https://www.cve.org/CVERecord?id=CVE-2023-23915 Référence CVE CVE-2023-23916 https://www.cve.org/CVERecord?id=CVE-2023-23916 Référence CVE CVE-2023-24531 https://www.cve.org/CVERecord?id=CVE-2023-24531 Référence CVE CVE-2023-24532 https://www.cve.org/CVERecord?id=CVE-2023-24532 Référence CVE CVE-2023-24534 https://www.cve.org/CVERecord?id=CVE-2023-24534 Référence CVE CVE-2023-24536 https://www.cve.org/CVERecord?id=CVE-2023-24536 Référence CVE CVE-2023-24537 https://www.cve.org/CVERecord?id=C

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0622Multiples vulnérabilités dans les produits VMware

.cve.org/CVERecord?id=CVE-2023-0215 Référence CVE CVE-2023-0216 https://www.cve.org/CVERecord?id=CVE-2023-0216 Référence CVE CVE-2023-0217 https://www.cve.org/CVERecord?id=CVE-2023-0217 Référence CVE CVE-2023-0286 https://www.cve.org/CVERecord?id=CVE-2023-0286 Référence CVE CVE-2023-0401 https://www.cve.org/CVERecord?id=CVE-2023-0401 Référence CVE CVE-2023-0464 https://www.cve.org/CVERecord?id=CVE-2023-0464 Référence CVE CVE-2023-0465 https://www.cve.org/CVERecord?id=CVE-2023-0465 Référence CVE CVE-2023-0466 https://www.cve.org/CVERecord?id=CVE-2023-0466 Référence CVE CVE-2023-1255 https://www.cve.org/CVERecord?id=CVE-2023-1255 Référence CVE CVE-2023-2253 https://www.cve.org/CVERecord?id=CVE-2023-2253 Référence CVE CVE-2023-23914 https://www.cve.org/CVERecord?id=CVE-2023-23914 Référence CVE CVE-2023-23915 https://www.cve.org/CVERecord?id=CVE-2023-23915 Référence CVE CVE-2023-23916 https://www.cve.org/CVERecord?id=CVE-2023-23916 Référence CVE CVE-2023-24531 https://www.cve.org/CVERecord?id=CVE-2023-24531 Référence CVE CVE-2023-24532 https://www.cve.org/CVERecord?id=CVE-2023-24532 Référence CVE CVE-2023-24534 https://www.cve.org/CVERecord?id=CVE-2023-24534 Référence CVE CVE-2023-24536 https://www.cve.org/CVERecord?id=CVE-2023-24536 Référence CVE CVE-2023-24537 https://www.cve.org/CVERecord?id=C

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0958Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2022-34305 Référence CVE CVE-2022-40897 https://www.cve.org/CVERecord?id=CVE-2022-40897 Référence CVE CVE-2022-42252 https://www.cve.org/CVERecord?id=CVE-2022-42252 Référence CVE CVE-2022-48632 https://www.cve.org/CVERecord?id=CVE-2022-48632 Référence CVE CVE-2022-48743 https://www.cve.org/CVERecord?id=CVE-2022-48743 Référence CVE CVE-2022-48747 https://www.cve.org/CVERecord?id=CVE-2022-48747 Référence CVE CVE-2022-48757 https://www.cve.org/CVERecord?id=CVE-2022-48757 Référence CVE CVE-2023-0286 https://www.cve.org/CVERecord?id=CVE-2023-0286 Référence CVE CVE-2023-20584 https://www.cve.org/CVERecord?id=CVE-2023-20584 Référence CVE CVE-2023-2253 https://www.cve.org/CVERecord?id=CVE-2023-2253 Référence CVE CVE-2023-23931 https://www.cve.org/CVERecord?id=CVE-2023-23931 Référence CVE CVE-2023-25153 https://www.cve.org/CVERecord?id=CVE-2023-25153 Référence CVE CVE-2023-25173 https://www.cve.org/CVERecord?id=CVE-2023-25173 Référence CVE CVE-2023-27043 https://www.cve.org/CVERecord?id=CVE-2023-27043 Référence CVE CVE-2023-28322 https://www.cve.org/CVERecord?id=CVE-2023-28322 Référence CVE CVE-2023-28486 https://www.cve.org/CVERecord?id=CVE-2023-28486 Référence CVE CVE-2023-28487 https://www.cve.org/CVERecord?id=CVE-2023-28487 Référence CVE CVE-2023-28708 https://www.cve.org/CVERecord?id=C

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0350Multiples vulnérabilités dans les produits IBM

d?id=CVE-2021-32760 Référence CVE CVE-2021-41103 https://www.cve.org/CVERecord?id=CVE-2021-41103 Référence CVE CVE-2021-43784 https://www.cve.org/CVERecord?id=CVE-2021-43784 Référence CVE CVE-2021-43816 https://www.cve.org/CVERecord?id=CVE-2021-43816 Référence CVE CVE-2022-23471 https://www.cve.org/CVERecord?id=CVE-2022-23471 Référence CVE CVE-2022-23648 https://www.cve.org/CVERecord?id=CVE-2022-23648 Référence CVE CVE-2022-29162 https://www.cve.org/CVERecord?id=CVE-2022-29162 Référence CVE CVE-2022-31030 https://www.cve.org/CVERecord?id=CVE-2022-31030 Référence CVE CVE-2022-42969 https://www.cve.org/CVERecord?id=CVE-2022-42969 Référence CVE CVE-2023-2253 https://www.cve.org/CVERecord?id=CVE-2023-2253 Référence CVE CVE-2023-25153 https://www.cve.org/CVERecord?id=CVE-2023-25153 Référence CVE CVE-2023-25173 https://www.cve.org/CVERecord?id=CVE-2023-25173 Référence CVE CVE-2023-25809 https://www.cve.org/CVERecord?id=CVE-2023-25809 Référence CVE CVE-2023-26136 https://www.cve.org/CVERecord?id=CVE-2023-26136 Référence CVE CVE-2023-26159 https://www.cve.org/CVERecord?id=CVE-2023-26159 Référence CVE CVE-2023-27561 https://www.cve.org/CVERecord?id=CVE-2023-27561 Référence CVE CVE-2023-28155 https://www.cve.org/CVERecord?id=CVE-2023-28155 Référence CVE CVE-2023-28642 https://www.cve.org/CVERecord?id=C

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0297Multiples vulnérabilités dans Juniper

cve.org/CVERecord?id=CVE-2022-48554 Référence CVE CVE-2023-0215 https://www.cve.org/CVERecord?id=CVE-2023-0215 Référence CVE CVE-2023-0216 https://www.cve.org/CVERecord?id=CVE-2023-0216 Référence CVE CVE-2023-0217 https://www.cve.org/CVERecord?id=CVE-2023-0217 Référence CVE CVE-2023-0286 https://www.cve.org/CVERecord?id=CVE-2023-0286 Référence CVE CVE-2023-0401 https://www.cve.org/CVERecord?id=CVE-2023-0401 Référence CVE CVE-2023-0466 https://www.cve.org/CVERecord?id=CVE-2023-0466 Référence CVE CVE-2023-0809 https://www.cve.org/CVERecord?id=CVE-2023-0809 Référence CVE CVE-2023-1428 https://www.cve.org/CVERecord?id=CVE-2023-1428 Référence CVE CVE-2023-2253 https://www.cve.org/CVERecord?id=CVE-2023-2253 Référence CVE CVE-2023-23914 https://www.cve.org/CVERecord?id=CVE-2023-23914 Référence CVE CVE-2023-23915 https://www.cve.org/CVERecord?id=CVE-2023-23915 Référence CVE CVE-2023-23931 https://www.cve.org/CVERecord?id=CVE-2023-23931 Référence CVE CVE-2023-2603 https://www.cve.org/CVERecord?id=CVE-2023-2603 Référence CVE CVE-2023-2650 https://www.cve.org/CVERecord?id=CVE-2023-2650 Référence CVE CVE-2023-27043 https://www.cve.org/CVERecord?id=CVE-2023-27043 Référence CVE CVE-2023-28366 https://www.cve.org/CVERecord?id=CVE-2023-28366 Référence CVE CVE-2023-29491 https://www.cve.org/CVERecord?id=CVE-2

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
NA
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 6 Jun 2023 · Last source change 7 Jan 2025, 21:30 UTC · CWE-475 · Undefined Behavior for Input to API

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-1561
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2023-1561↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-2253 · cve.blacktree.nl