CVE-2021-3910 - Vulnerability Details - OpenCVE

Description

OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\0) character).

Published: 2021-11-11

Score: 4.4 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

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

Vendor Product Default status Versions

Cloudflare

octorpki

affected

Version	Status	Constraints
`unspecified`	affected	< 1.4.0

Configuration 1 [-]

cpe:2.3:a:cloudflare:octorpki:*:*:*:*:*:*:*:*

Configuration 2 [-]

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

Vendor Solution

Upgrade to 1.4

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
Debian DSA	DSA-5041-1	cfrpki security update
EUVD	EUVD-2021-2304	OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\0) character).
Github GHSA	GHSA-5mxh-2qfv-4g7j	NUL character in ROA causes OctoRPKI to crash

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00555.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j
https://www.debian.org/security/2022/dsa-5041

History

No history.

Subscriptions

Cloudflare Octorpki

Debian Debian Linux

MITRE

Status: PUBLISHED

Assigner: cloudflare

Published: 2021-11-11T21:45:21.177Z

Updated: 2024-09-17T03:27:37.742Z

Reserved: 2021-10-26T00:00:00.000Z

Link: CVE-2021-3910

Vulnrichment

No data.

NVD

Status : Analyzed

Published: 2021-11-11T22:15:07.973

Modified: 2026-04-15T14:52:55.337

Link: CVE-2021-3910

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-20

{"containers": {"cna": {"affected": [{"product": "octorpki", "vendor": "Cloudflare", "versions": [{"lessThan": "1.4.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Koen van Hove"}], "datePublic": "2021-11-01T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\\0) character)."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-01-12T10:06:28.000Z", "orgId": "a22f1246-ba21-4bb4-a601-ad51614c1513", "shortName": "cloudflare"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j"}, {"name": "DSA-5041", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "https://www.debian.org/security/2022/dsa-5041"}], "solutions": [{"lang": "en", "value": "Upgrade to 1.4"}], "source": {"discovery": "EXTERNAL"}, "title": "NUL character in ROA causes OctoRPKI to crash", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cna@cloudflare.com", "DATE_PUBLIC": "2021-11-01T22:48:00.000Z", "ID": "CVE-2021-3910", "STATE": "PUBLIC", "TITLE": "NUL character in ROA causes OctoRPKI to crash"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "octorpki", "version": {"version_data": [{"version_affected": "<", "version_value": "1.4.0"}]}}]}, "vendor_name": "Cloudflare"}]}}, "credit": [{"lang": "eng", "value": "Koen van Hove"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\\0) character)."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-20 Improper Input Validation"}]}]}, "references": {"reference_data": [{"name": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j", "refsource": "MISC", "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j"}, {"name": "DSA-5041", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2022/dsa-5041"}]}, "solution": [{"lang": "en", "value": "Upgrade to 1.4"}], "source": {"discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:09:09.697Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j"}, {"name": "DSA-5041", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "https://www.debian.org/security/2022/dsa-5041"}]}]}, "cveMetadata": {"assignerOrgId": "a22f1246-ba21-4bb4-a601-ad51614c1513", "assignerShortName": "cloudflare", "cveId": "CVE-2021-3910", "datePublished": "2021-11-11T21:45:21.177Z", "dateReserved": "2021-10-26T00:00:00.000Z", "dateUpdated": "2024-09-17T03:27:37.742Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cloudflare:octorpki:*:*:*:*:*:*:*:*", "matchCriteriaId": "39D8C6EC-A1BC-436C-BE52-EAC4781F709B", "versionEndExcluding": "1.4.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\\0) character)."}, {"lang": "es", "value": "OctoRPKI es bloqueado cuando encuentra un repositorio que devuelve un ROA inv\u00e1lido (s\u00f3lo un car\u00e1cter NUL (\\0) codificado)"}], "id": "CVE-2021-3910", "lastModified": "2026-04-15T14:52:55.337", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 4.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 0.7, "impactScore": 3.6, "source": "cna@cloudflare.com", "type": "Secondary"}, {"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"}]}, "published": "2021-11-11T22:15:07.973", "references": [{"source": "cna@cloudflare.com", "tags": ["Third Party Advisory"], "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j"}, {"source": "cna@cloudflare.com", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2022/dsa-5041"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2022/dsa-5041"}], "sourceIdentifier": "cna@cloudflare.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "cna@cloudflare.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}