CVE-2020-26800 - Vulnerability Details - OpenCVE

Description

A stack overflow vulnerability in Aleth Ethereum C++ client version <= 1.8.0 using a specially crafted a config.json file may result in a denial of service.

Published: 2021-01-11

Score: 5.5 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

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:ethereum:aleth:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2020-19336	A stack overflow vulnerability in Aleth Ethereum C++ client version <= 1.8.0 using a specially crafted a config.json file may result in a denial of service.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00255.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://ethereum.org/en/about/
https://github.com/ethereum/aleth
https://github.com/ethereum/aleth/issues/5917

History

No history.

Subscriptions

Ethereum Aleth

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-01-11T12:50:11.000Z

Updated: 2024-08-04T16:03:22.591Z

Reserved: 2020-10-07T00:00:00.000Z

Link: CVE-2020-26800

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-01-11T13:15:13.260

Modified: 2024-11-21T05:20:18.203

Link: CVE-2020-26800

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-787

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "A stack overflow vulnerability in Aleth Ethereum C++ client version <= 1.8.0 using a specially crafted a config.json file may result in a denial of service."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-01-11T12:50:11.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/ethereum/aleth"}, {"tags": ["x_refsource_MISC"], "url": "https://ethereum.org/en/about/"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/ethereum/aleth/issues/5917"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-26800", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A stack overflow vulnerability in Aleth Ethereum C++ client version <= 1.8.0 using a specially crafted a config.json file may result in a denial of service."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/ethereum/aleth", "refsource": "MISC", "url": "https://github.com/ethereum/aleth"}, {"name": "https://ethereum.org/en/about/", "refsource": "MISC", "url": "https://ethereum.org/en/about/"}, {"name": "https://github.com/ethereum/aleth/issues/5917", "refsource": "MISC", "url": "https://github.com/ethereum/aleth/issues/5917"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T16:03:22.591Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/ethereum/aleth"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://ethereum.org/en/about/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/ethereum/aleth/issues/5917"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2020-26800", "datePublished": "2021-01-11T12:50:11.000Z", "dateReserved": "2020-10-07T00:00:00.000Z", "dateUpdated": "2024-08-04T16:03:22.591Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ethereum:aleth:*:*:*:*:*:*:*:*", "matchCriteriaId": "BB30748E-D2BA-4956-AC11-E49FFA9A93F2", "versionEndIncluding": "1.8.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "A stack overflow vulnerability in Aleth Ethereum C++ client version <= 1.8.0 using a specially crafted a config.json file may result in a denial of service."}, {"lang": "es", "value": "Una vulnerabilidad de desbordamiento de la pila en el cliente Aleth Ethereum C++ versiones anteriores a 1.8.0, usando un archivo config.json especialmente dise\u00f1ado puede resultar en una denegaci\u00f3n de servicio"}], "id": "CVE-2020-26800", "lastModified": "2024-11-21T05:20:18.203", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-01-11T13:15:13.260", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://ethereum.org/en/about/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://github.com/ethereum/aleth"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/ethereum/aleth/issues/5917"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://ethereum.org/en/about/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/ethereum/aleth"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/ethereum/aleth/issues/5917"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}