GHSA-2ww3-fxvq-293j
Vulnerability from github
Published
2021-09-29 17:14
Modified
2024-10-07 15:09
Severity ?
7.5 (High) - CVSS:3.1/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
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
Summary
NLTK Vulnerable to REDoS
Details
The nltk package is vulnerable to ReDoS (regular expression denial of service). An attacker that is able to provide as an input to the [_read_comparison_block()
(https://github.com/nltk/nltk/blob/23f4b1c4b4006b0cb3ec278e801029557cec4e82/nltk/corpus/reader/comparative_sents.py#L259) function in the file nltk/corpus/reader/comparative_sents.py
may cause an application to consume an excessive amount of CPU.
{ "affected": [ { "package": { "ecosystem": "PyPI", "name": "nltk" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "3.6.4" } ], "type": "ECOSYSTEM" } ] } ], "aliases": [ "CVE-2021-3828" ], "database_specific": { "cwe_ids": [ "CWE-1333", "CWE-697" ], "github_reviewed": true, "github_reviewed_at": "2021-09-28T20:49:37Z", "nvd_published_at": "2021-09-27T13:15:00Z", "severity": "HIGH" }, "details": "The nltk package is vulnerable to ReDoS (regular expression denial of service). An attacker that is able to provide as an input to the [`_read_comparison_block()`(https://github.com/nltk/nltk/blob/23f4b1c4b4006b0cb3ec278e801029557cec4e82/nltk/corpus/reader/comparative_sents.py#L259) function in the file `nltk/corpus/reader/comparative_sents.py` may cause an application to consume an excessive amount of CPU.", "id": "GHSA-2ww3-fxvq-293j", "modified": "2024-10-07T15:09:21Z", "published": "2021-09-29T17:14:53Z", "references": [ { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3828" }, { "type": "WEB", "url": "https://github.com/nltk/nltk/pull/2816" }, { "type": "WEB", "url": "https://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6" }, { "type": "ADVISORY", "url": "https://github.com/advisories/GHSA-2ww3-fxvq-293j" }, { "type": "PACKAGE", "url": "https://github.com/nltk/nltk" }, { "type": "WEB", "url": "https://github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2021-356.yaml" }, { "type": "WEB", "url": "https://huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:3.1/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" }
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Sightings
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Nomenclature
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.