GHSA-9HX2-HGQ2-2G4F

Vulnerability from github – Published: 2021-03-29 16:35 – Updated: 2024-10-09 21:05
VLAI?
Summary
Regular Expression Denial of Service (ReDoS) in Pillow
Details

An issue was discovered in Pillow before 8.1.1. The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex.

Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pillow"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.1.0"
            },
            {
              "fixed": "8.1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-25292"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-22T22:05:35Z",
    "nvd_published_at": "2021-03-19T04:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Pillow before 8.1.1. The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex.",
  "id": "GHSA-9hx2-hgq2-2g4f",
  "modified": "2024-10-09T21:05:46Z",
  "published": "2021-03-29T16:35:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25292"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python-pillow/Pillow/commit/3bce145966374dd39ce58a6fc0083f8d1890719c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python-pillow/Pillow/commit/521dab94c7ab72b037bd9a83e9663401e0fd2cee"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python-pillow/Pillow/commit/6207b44ab1ff4a91d8ddc7579619876d0bb191a4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-9hx2-hgq2-2g4f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-38.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python-pillow/Pillow"
    },
    {
      "type": "WEB",
      "url": "https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202107-33"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Regular Expression Denial of Service (ReDoS) in Pillow"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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