原始 OSV JSON
{
"id": "GHSA-2ww3-fxvq-293j",
"aliases": [
"CVE-2021-3828"
],
"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.",
"summary": "NLTK Vulnerable to REDoS",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.4"
}
]
}
],
"package": {
"name": "nltk",
"ecosystem": "PyPI"
}
}
],
"modified": "2024-10-07T15:09:21Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V4",
"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"
}
],
"published": "2021-09-29T17:14:53Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3828",
"type": "ADVISORY"
},
{
"url": "https://github.com/nltk/nltk/pull/2816",
"type": "WEB"
},
{
"url": "https://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6",
"type": "WEB"
},
{
"url": "https://github.com/advisories/GHSA-2ww3-fxvq-293j",
"type": "ADVISORY"
},
{
"url": "https://github.com/nltk/nltk",
"type": "PACKAGE"
},
{
"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",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-1333",
"CWE-697"
],
"severity": "HIGH",
"github_reviewed": true,
"nvd_published_at": "2021-09-27T13:15:00Z",
"github_reviewed_at": "2021-09-28T20:49:37Z"
}
}