pysec - pysec-2022-5

PYSEC-2022-5

Vulnerability from pysec - Published: 2022-01-04 15:15 - Updated: 2022-01-12 23:31

Details

nltk is vulnerable to Inefficient Regular Expression Complexity

Impacted products

Name	purl
nltk	pkg:pypi/nltk

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "nltk",
        "purl": "pkg:pypi/nltk"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2a50a3edc9d35f57ae42a921c621edc160877f4d"
            }
          ],
          "repo": "https://github.com/nltk/nltk",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.8",
        "0.9",
        "0.9.3",
        "0.9.4",
        "0.9.5",
        "0.9.6",
        "0.9.7",
        "0.9.8",
        "0.9.9",
        "2.0.1",
        "2.0.1rc1",
        "2.0.1rc2-git",
        "2.0.1rc3",
        "2.0.1rc4",
        "2.0.2",
        "2.0.3",
        "2.0.4",
        "2.0.5",
        "2.0b4",
        "2.0b5",
        "2.0b6",
        "2.0b7",
        "2.0b8",
        "2.0b9",
        "3.0.0",
        "3.0.0b1",
        "3.0.0b2",
        "3.0.1",
        "3.0.2",
        "3.0.3",
        "3.0.4",
        "3.0.5",
        "3.1",
        "3.2",
        "3.2.1",
        "3.2.2",
        "3.2.3",
        "3.2.4",
        "3.2.5",
        "3.3",
        "3.4",
        "3.4.1",
        "3.4.2",
        "3.4.3",
        "3.4.4",
        "3.4.5",
        "3.5",
        "3.5b1",
        "3.6",
        "3.6.1",
        "3.6.2",
        "3.6.3",
        "3.6.4",
        "3.6.5"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-3842",
    "GHSA-rqjh-jp2r-59cj"
  ],
  "details": "nltk is vulnerable to Inefficient Regular Expression Complexity",
  "id": "PYSEC-2022-5",
  "modified": "2022-01-12T23:31:32.837727Z",
  "published": "2022-01-04T15:15:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://huntr.dev/bounties/761a761e-2be2-430a-8d92-6f74ffe9866a"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nltk/nltk/commit/2a50a3edc9d35f57ae42a921c621edc160877f4d"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-rqjh-jp2r-59cj"
    }
  ]
}

GHSA-RQJH-JP2R-59CJ

Vulnerability from github – Published: 2022-01-06 22:24 – Updated: 2024-09-26 14:14

Summary

NLTK Vulnerable to REDoS

Details

NLTK is vulnerable to REDoS in some RegexpTaggers used in the functions get_pos_tagger and malt_regex_tagger.

Severity ?

7.5 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "nltk"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-3842"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-01-06T19:53:00Z",
    "nvd_published_at": "2022-01-04T15:15:00Z",
    "severity": "HIGH"
  },
  "details": "NLTK is vulnerable to REDoS in some RegexpTaggers used in the functions `get_pos_tagger` and `malt_regex_tagger`.",
  "id": "GHSA-rqjh-jp2r-59cj",
  "modified": "2024-09-26T14:14:41Z",
  "published": "2022-01-06T22:24:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3842"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nltk/nltk/pull/2906"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nltk/nltk/commit/2a50a3edc9d35f57ae42a921c621edc160877f4d"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/nltk/nltk"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2022-5.yaml"
    },
    {
      "type": "WEB",
      "url": "https://huntr.dev/bounties/761a761e-2be2-430a-8d92-6f74ffe9866a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "NLTK Vulnerable to REDoS"
}

CVE-2021-3842 (GCVE-0-2021-3842)

Vulnerability from cvelistv5 – Published: 2022-01-04 14:50 – Updated: 2024-08-03 17:09

Summary

nltk is vulnerable to Inefficient Regular Expression Complexity

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-1333 - Inefficient Regular Expression Complexity

Assigner

@huntrdev

References

URL

Tags

	https://huntr.dev/bounties/761a761e-2be2-430a-8d9…	x_refsource_CONFIRM
	https://github.com/nltk/nltk/commit/2a50a3edc9d35…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	nltk	nltk/nltk	Affected: unspecified , < 3.6.6 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:09:09.531Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://huntr.dev/bounties/761a761e-2be2-430a-8d92-6f74ffe9866a"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/nltk/nltk/commit/2a50a3edc9d35f57ae42a921c621edc160877f4d"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "nltk/nltk",
          "vendor": "nltk",
          "versions": [
            {
              "lessThan": "3.6.6",
              "status": "affected",
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              "versionType": "custom"
            }
          ]
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      ],
      "descriptions": [
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      ],
      "metrics": [
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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          }
        }
      ],
      "problemTypes": [
        {
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              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
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      },
      "references": [
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        },
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          "url": "https://github.com/nltk/nltk/commit/2a50a3edc9d35f57ae42a921c621edc160877f4d"
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      ],
      "source": {
        "advisory": "761a761e-2be2-430a-8d92-6f74ffe9866a",
        "discovery": "EXTERNAL"
      },
      "title": "Inefficient Regular Expression Complexity in nltk/nltk",
      "x_legacyV4Record": {
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        },
        "affects": {
          "vendor": {
            "vendor_data": [
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                    {
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                      "version": {
                        "version_data": [
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                            "version_affected": "\u003c",
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                          }
                        ]
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            "baseScore": 7.5,
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            "integrityImpact": "NONE",
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            "scope": "UNCHANGED",
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            },
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    "dateReserved": "2021-09-30T00:00:00",
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    "state": "PUBLISHED"
  },
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

PYSEC-2022-5

GHSA-RQJH-JP2R-59CJ

CVE-2021-3842 (GCVE-0-2021-3842)

Tags

Sightings

Nomenclature