CVE-2021-3828
Vulnerability from cvelistv5
Published
2021-09-27 12:25
Modified
2024-08-03 17:09
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
nltk is vulnerable to Inefficient Regular Expression Complexity
References
security@huntr.devhttps://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6Patch, Third Party Advisory
security@huntr.devhttps://huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32Exploit, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32Exploit, Patch, Third Party Advisory
Impacted products
Vendor Product Version
nltk nltk/nltk Version: unspecified   <
Create a notification for this product.
Show details on NVD website

To clipboard 

{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-03T17:09:09.516Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
               shortName: "CVE",
            },
            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",
               },
            ],
            title: "CVE Program Container",
         },
      ],
      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",
            },
         },
      },
   },
   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",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2021-3828\",\"sourceIdentifier\":\"security@huntr.dev\",\"published\":\"2021-09-27T13:15:07.993\",\"lastModified\":\"2024-11-21T06:22:33.317\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"nltk is vulnerable to Inefficient Regular Expression Complexity\"},{\"lang\":\"es\",\"value\":\"nltk es vulnerable a una Complejidad de Expresión Regular Ineficiente\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV30\":[{\"source\":\"security@huntr.dev\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"security@huntr.dev\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-1333\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-697\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:nltk:nltk:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"3.6.3\",\"matchCriteriaId\":\"18A51778-0184-4262-A014-08D077E6BE93\"}]}]}],\"references\":[{\"url\":\"https://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6\",\"source\":\"security@huntr.dev\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32\",\"source\":\"security@huntr.dev\",\"tags\":[\"Exploit\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Patch\",\"Third Party Advisory\"]}]}}",
   },
}


Log in or create an account to share your comment.

Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.