CVE-2021-3828 - OpenCVE

nltk is vulnerable to Inefficient Regular Expression Complexity

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

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Nltk	Nltk

Configuration 1 [-]

cpe:2.3:a:nltk:nltk:*:*:*:*:*:*:*:*

No data.

References

Link	Providers
https://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6
https://huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32

History

No history.

MITRE

Status: PUBLISHED

Assigner: @huntrdev

Published: 2021-09-27T12:25:30

Updated: 2024-08-03T17:09:09.516Z

Reserved: 2021-09-24T00:00:00

Link: CVE-2021-3828

Vulnrichment

No data.

NVD

Status : Analyzed

Published: 2021-09-27T13:15:07.993

Modified: 2022-04-25T18:18:14.673

Link: CVE-2021-3828

Redhat

No data.

{"containers": {"cna": {"affected": [{"product": "nltk/nltk", "vendor": "nltk", "versions": [{"lessThanOrEqual": "3.6.3", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Srikanth Prathi (@srikanthprathi)"}, {"lang": "en", "value": "Tom Aarsen (@tomaarsen)"}], "descriptions": [{"lang": "en", "value": "nltk is vulnerable to Inefficient Regular Expression Complexity"}], "metrics": [{"cvssV3_0": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-1333", "description": "CWE-1333 Inefficient Regular Expression Complexity", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-09-27T12:25:29", "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntrdev"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6"}], "source": {"advisory": "d19aed43-75bc-4a03-91a0-4d0bb516bc32", "discovery": "EXTERNAL"}, "title": "Inefficient Regular Expression Complexity in nltk/nltk", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@huntr.dev", "ID": "CVE-2021-3828", "STATE": "PUBLIC", "TITLE": "Inefficient Regular Expression Complexity in nltk/nltk"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "nltk/nltk", "version": {"version_data": [{"version_affected": "<=", "version_value": "3.6.3"}]}}]}, "vendor_name": "nltk"}]}}, "credit": [{"lang": "eng", "value": "Srikanth Prathi (@srikanthprathi)"}, {"lang": "eng", "value": "Tom Aarsen (@tomaarsen)"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "nltk is vulnerable to Inefficient Regular Expression Complexity"}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-1333 Inefficient Regular Expression Complexity"}]}]}, "references": {"reference_data": [{"name": "https://huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32", "refsource": "CONFIRM", "url": "https://huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32"}, {"name": "https://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6", "refsource": "MISC", "url": "https://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6"}]}, "source": {"advisory": "d19aed43-75bc-4a03-91a0-4d0bb516bc32", "discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:09:09.516Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6"}]}]}, "cveMetadata": {"assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "assignerShortName": "@huntrdev", "cveId": "CVE-2021-3828", "datePublished": "2021-09-27T12:25:30", "dateReserved": "2021-09-24T00:00:00", "dateUpdated": "2024-08-03T17:09:09.516Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:nltk:nltk:*:*:*:*:*:*:*:*", "matchCriteriaId": "18A51778-0184-4262-A014-08D077E6BE93", "versionEndIncluding": "3.6.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "nltk is vulnerable to Inefficient Regular Expression Complexity"}, {"lang": "es", "value": "nltk es vulnerable a una Complejidad de Expresi\u00f3n Regular Ineficiente"}], "id": "CVE-2021-3828", "lastModified": "2022-04-25T18:18:14.673", "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}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security@huntr.dev", "type": "Secondary"}], "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"}]}, "published": "2021-09-27T13:15:07.993", "references": [{"source": "security@huntr.dev", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6"}, {"source": "security@huntr.dev", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32"}], "sourceIdentifier": "security@huntr.dev", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-697"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-1333"}], "source": "security@huntr.dev", "type": "Secondary"}]}