CVE-2020-26256

Fast-csv is an npm package for parsing and formatting CSVs or any other delimited value file in node. In fast-cvs before version 4.3.6 there is a possible ReDoS vulnerability (Regular Expression Denial of Service) when using ignoreEmpty option when parsing. This has been patched in `v4.3.6` You will only be affected by this if you use the `ignoreEmpty` parsing option. If you do use this option it is recommended that you upgrade to the latest version `v4.3.6` This vulnerability was found using a CodeQL query which identified `EMPTY_ROW_REGEXP` regular expression as vulnerable.

CVSS v3.0 6.5 MEDIUM
CVSS v2.0 3.5 LOW

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

3.5^/10

CVSS v2.0 : LOW

Vector : AV:N/AC:M/Au:S/C:N/I:N/A:P

Exploitability : 6.8 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/C2FO/fast-csv/commit/4bbd39f26a8cd7382151ab4f5fb102234b2f829e	Patch Third Party Advisory
https://github.com/C2FO/fast-csv/security/advisories/GHSA-8cv5-p934-3hwp	Third Party Advisory
https://www.npmjs.com/package/fast-csv	Product Third Party Advisory
https://www.npmjs.com/package/@fast-csv/parse	Product Third Party Advisory
https://lgtm.com/query/8609731774537641779/	Exploit Third Party Advisory
https://github.com/C2FO/fast-csv/issues/540	Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:c2fo:fast-csv:*:*:*:*:*:node.js:*:*

Information

Published : 2020-12-08 14:15

Updated : 2021-10-07 10:08

NVD link : CVE-2020-26256

Mitre link : CVE-2020-26256

JSON object : View

CWE

CWE-400

Uncontrolled Resource Consumption

Advertisement

Products Affected

c2fo

fast-csv

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/C2FO/fast-csv/commit/4bbd39f26a8cd7382151ab4f5fb102234b2f829e", "name": "https://github.com/C2FO/fast-csv/commit/4bbd39f26a8cd7382151ab4f5fb102234b2f829e", "tags": ["Patch", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/C2FO/fast-csv/security/advisories/GHSA-8cv5-p934-3hwp", "name": "https://github.com/C2FO/fast-csv/security/advisories/GHSA-8cv5-p934-3hwp", "tags": ["Third Party Advisory"], "refsource": "CONFIRM"}, {"url": "https://www.npmjs.com/package/fast-csv", "name": "https://www.npmjs.com/package/fast-csv", "tags": ["Product", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://www.npmjs.com/package/@fast-csv/parse", "name": "https://www.npmjs.com/package/@fast-csv/parse", "tags": ["Product", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://lgtm.com/query/8609731774537641779/", "name": "https://lgtm.com/query/8609731774537641779/", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://github.com/C2FO/fast-csv/issues/540", "name": "https://github.com/C2FO/fast-csv/issues/540", "tags": ["Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Fast-csv is an npm package for parsing and formatting CSVs or any other delimited value file in node. In fast-cvs before version 4.3.6 there is a possible ReDoS vulnerability (Regular Expression Denial of Service) when using ignoreEmpty option when parsing. This has been patched in `v4.3.6` You will only be affected by this if you use the `ignoreEmpty` parsing option. If you do use this option it is recommended that you upgrade to the latest version `v4.3.6` This vulnerability was found using a CodeQL query which identified `EMPTY_ROW_REGEXP` regular expression as vulnerable."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-400"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-26256", "ASSIGNER": "security-advisories@github.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 3.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:S/C:N/I:N/A:P", "authentication": "SINGLE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "severity": "LOW", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 6.8, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}}, "publishedDate": "2020-12-08T22:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:c2fo:fast-csv:*:*:*:*:*:node.js:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "4.3.6"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2021-10-07T17:08Z"}