GHSA-PQ64-V7F5-GQH8高危已审查

Pygments vulnerable to Regular Expression Denial of Service (ReDoS)

OSV 1.4.0 · github-reviewed · 修改于 2024-10-15 00:10

发布时间

2021-03-30 00:33

GitHub 审查时间

2021-03-23 04:28

NVD 发布时间

2021-03-17 21:15

源文件

advisories/github-reviewed/2021/03/GHSA-pq64-v7f5-gqh8/GHSA-pq64-v7f5-gqh8.json

公告说明

In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.

受影响的软件包

PyPI

Pygments

ECOSYSTEM

引入1.1修复2.7.4

标识信息

别名 / CVE

CVE-2021-27291

CWE

CWE-400

软件生态

PyPI

扩展资料

暂无扩展资料。

CVSS 评分

CVSS_V3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS_V4

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

原始 OSV JSON

{
  "id": "GHSA-pq64-v7f5-gqh8",
  "aliases": [
    "CVE-2021-27291"
  ],
  "details": "In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.",
  "summary": "Pygments vulnerable to Regular Expression Denial of Service (ReDoS)",
  "affected": [
    {
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "1.1"
            },
            {
              "fixed": "2.7.4"
            }
          ]
        }
      ],
      "package": {
        "name": "Pygments",
        "ecosystem": "PyPI"
      }
    }
  ],
  "modified": "2024-10-14T16:10:54Z",
  "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": "2021-03-29T16:33:03Z",
  "references": [
    {
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-27291",
      "type": "ADVISORY"
    },
    {
      "url": "https://github.com/pygments/pygments/commit/2e7e8c4a7b318f4032493773732754e418279a14",
      "type": "WEB"
    },
    {
      "url": "https://gist.github.com/b-c-ds/b1a2cc0c68a35c57188575eb496de5ce",
      "type": "WEB"
    },
    {
      "url": "https://github.com/pygments/pygments",
      "type": "PACKAGE"
    },
    {
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pygments/PYSEC-2021-141.yaml",
      "type": "WEB"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00024.html",
      "type": "WEB"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html",
      "type": "WEB"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html",
      "type": "WEB"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/[email protected]/message/GSJRFHALQ7E3UV4FFMFU2YQ6LUDHAI55",
      "type": "WEB"
    },
    {
      "url": "https://lists.fedoraproject.org/archives/list/[email protected]/message/WSLD67LFGXOX2K5YNESSWAS4AGZIJTUQ",
      "type": "WEB"
    },
    {
      "url": "https://www.debian.org/security/2021/dsa-4878",
      "type": "WEB"
    },
    {
      "url": "https://www.debian.org/security/2021/dsa-4889",
      "type": "WEB"
    }
  ],
  "schema_version": "1.4.0",
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "nvd_published_at": "2021-03-17T13:15:00Z",
    "github_reviewed_at": "2021-03-22T20:28:40Z"
  }
}