CVE-2021-4070 - Vulnerability Details - OpenCVE

Off-by-one Error in GitHub repository v2fly/v2ray-core prior to 4.44.0.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact High

User Interaction None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
V2fly	V2ray-core

Configuration 1 [-]

cpe:2.3:a:v2fly:v2ray-core:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://github.com/v2fly/v2ray-core/commit/c1af2bfd7aa59a4482aa7f6ec4b9208c1d350b5c
https://huntr.dev/bounties/8da19456-4d89-41ef-9781-a41efd6a1877

History

No history.

MITRE

Status: PUBLISHED

Assigner: @huntrdev

Published: 2022-02-23T19:50:10

Updated: 2024-08-03T17:16:03.674Z

Reserved: 2021-12-05T00:00:00

Link: CVE-2021-4070

Vulnrichment

No data.

NVD

Status : Modified

Published: 2022-02-23T20:15:09.167

Modified: 2024-11-21T06:36:50.743

Link: CVE-2021-4070

Redhat

No data.

{"containers": {"cna": {"affected": [{"product": "v2fly/v2ray-core", "vendor": "v2fly", "versions": [{"lessThan": "4.44.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "Off-by-one Error in GitHub repository v2fly/v2ray-core prior to 4.44.0."}], "metrics": [{"cvssV3_0": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.0"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-193", "description": "CWE-193 Off-by-one Error", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-02-23T19:50:10", "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntrdev"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://huntr.dev/bounties/8da19456-4d89-41ef-9781-a41efd6a1877"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/v2fly/v2ray-core/commit/c1af2bfd7aa59a4482aa7f6ec4b9208c1d350b5c"}], "source": {"advisory": "8da19456-4d89-41ef-9781-a41efd6a1877", "discovery": "EXTERNAL"}, "title": "Off-by-one Error in v2fly/v2ray-core", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@huntr.dev", "ID": "CVE-2021-4070", "STATE": "PUBLIC", "TITLE": "Off-by-one Error in v2fly/v2ray-core"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "v2fly/v2ray-core", "version": {"version_data": [{"version_affected": "<", "version_value": "4.44.0"}]}}]}, "vendor_name": "v2fly"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Off-by-one Error in GitHub repository v2fly/v2ray-core prior to 4.44.0."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-193 Off-by-one Error"}]}]}, "references": {"reference_data": [{"name": "https://huntr.dev/bounties/8da19456-4d89-41ef-9781-a41efd6a1877", "refsource": "CONFIRM", "url": "https://huntr.dev/bounties/8da19456-4d89-41ef-9781-a41efd6a1877"}, {"name": "https://github.com/v2fly/v2ray-core/commit/c1af2bfd7aa59a4482aa7f6ec4b9208c1d350b5c", "refsource": "MISC", "url": "https://github.com/v2fly/v2ray-core/commit/c1af2bfd7aa59a4482aa7f6ec4b9208c1d350b5c"}]}, "source": {"advisory": "8da19456-4d89-41ef-9781-a41efd6a1877", "discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:16:03.674Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://huntr.dev/bounties/8da19456-4d89-41ef-9781-a41efd6a1877"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/v2fly/v2ray-core/commit/c1af2bfd7aa59a4482aa7f6ec4b9208c1d350b5c"}]}]}, "cveMetadata": {"assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "assignerShortName": "@huntrdev", "cveId": "CVE-2021-4070", "datePublished": "2022-02-23T19:50:10", "dateReserved": "2021-12-05T00:00:00", "dateUpdated": "2024-08-03T17:16:03.674Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:v2fly:v2ray-core:*:*:*:*:*:*:*:*", "matchCriteriaId": "979DEA5F-2F1E-443A-9585-1BE8D31FEB80", "versionEndExcluding": "4.44.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Off-by-one Error in GitHub repository v2fly/v2ray-core prior to 4.44.0."}, {"lang": "es", "value": "Un Error de Desv\u00edo en el repositorio de GitHub v2fly/v2ray-core versiones anteriores a 4.44.0"}], "id": "CVE-2021-4070", "lastModified": "2024-11-21T06:36:50.743", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "version": "3.0"}, "exploitabilityScore": 2.5, "impactScore": 3.4, "source": "security@huntr.dev", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-02-23T20:15:09.167", "references": [{"source": "security@huntr.dev", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/v2fly/v2ray-core/commit/c1af2bfd7aa59a4482aa7f6ec4b9208c1d350b5c"}, {"source": "security@huntr.dev", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/8da19456-4d89-41ef-9781-a41efd6a1877"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/v2fly/v2ray-core/commit/c1af2bfd7aa59a4482aa7f6ec4b9208c1d350b5c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/8da19456-4d89-41ef-9781-a41efd6a1877"}], "sourceIdentifier": "security@huntr.dev", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-193"}], "source": "security@huntr.dev", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-193"}], "source": "nvd@nist.gov", "type": "Primary"}]}