CVE-2023-31621

virtuoso-opensource: DoS in kc_var_col component

View on CVE.org

Published May 15, 2023 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Description

An issue in the kc_var_col component of openlink virtuoso-opensource v7.2.9 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:openlinksw:virtuoso:7.2.9:*:*:*:open_source:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-35917	An issue in the kc_var_col component of openlink virtuoso-opensource v7.2.9 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.905% probability within 30 days)

Exploitation poc

Automatable yes

Technical Impact partial

References

Link	Providers
https://github.com/openlink/virtuoso-opensource/issues/1130
https://nvd.nist.gov/vuln/detail/CVE-2023-31621
https://www.cve.org/CVERecord?id=CVE-2023-31621

History

Jan 24, 2025 3:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Openlinksw Virtuoso

Weaknesses

Sources

CVE record Updated: Jan 24, 2025, 2:57 PM

Status: PUBLISHED
Assigner: mitre
Published: May 15, 2023, 12:00 AM
Updated: Jan 24, 2025, 2:57 PM
Reserved: Apr 29, 2023, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 2:53 PM

Updated: Aug 2, 2024, 2:53 PM

NVD Updated: Jun 17, 2026, 5:57 AM

Status: Modified
Published: May 15, 2023, 3:15 PM
Modified: Jun 17, 2026, 5:57 AM

View source JSON

Red Hat Updated: May 21, 2023, 12:00 AM

Severity: Moderate
Public date: May 21, 2023, 12:00 AM

View source Bugzilla JSON

OpenCVE enrichment No data

No data.

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:openlinksw:virtuoso:7.2.9:*:*:*:open_source:*:*:*", "matchCriteriaId": "75FD7F91-D201-4286-8F97-D2D1C7C9D4C3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue in the kc_var_col component of openlink virtuoso-opensource v7.2.9 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements."}], "id": "CVE-2023-31621", "lastModified": "2026-06-17T05:57:17.083", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-31621", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-01-24T14:57:17.426542Z", "version": "2.0.3"}}]}, "published": "2023-05-15T15:15:12.300", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Issue Tracking", "Patch"], "url": "https://github.com/openlink/virtuoso-opensource/issues/1130"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Patch"], "url": "https://github.com/openlink/virtuoso-opensource/issues/1130"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-89"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-89"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}