GHSA-xcjx-m2pj-8g79
Vulnerability from github
Published
2022-04-22 20:54
Modified
2024-10-14 16:49
Severity ?
6.2 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/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
Summary
Manipulated inline images can cause Infinite Loop in PyPDF2
Details

Impact

An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop if the PyPDF2 user wrote the following code:

```python from PyPDF2 import PdfFileReader, PdfFileWriter from PyPDF2.pdf import ContentStream

reader = PdfFileReader("malicious.pdf", strict=False) for page in reader.pages: ContentStream(page.getContents(), reader) ```

Patches

PyPDF2==1.27.5 and later are patched.

Credits to Sebastian Krause for finding (issue) and fixing (PR) it.

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "PyPDF2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.27.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-24859"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-04-22T20:54:41Z",
    "nvd_published_at": "2022-04-18T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nAn attacker who uses this vulnerability can craft a PDF which leads to an infinite loop if the PyPDF2 user wrote the following code:\n\n```python\nfrom PyPDF2 import PdfFileReader, PdfFileWriter\nfrom PyPDF2.pdf import ContentStream\n\nreader = PdfFileReader(\"malicious.pdf\", strict=False)\nfor page in reader.pages:\n    ContentStream(page.getContents(), reader)\n```\n\n### Patches\n\n[`PyPDF2==1.27.5`](https://pypi.org/project/PyPDF2) and later are patched.\n\nCredits to [Sebastian Krause](https://github.com/sekrause) for finding ([issue](https://github.com/py-pdf/PyPDF2/issues/329)) and fixing ([PR](https://github.com/py-pdf/PyPDF2/pull/740)) it.\n",
  "id": "GHSA-xcjx-m2pj-8g79",
  "modified": "2024-10-14T16:49:22Z",
  "published": "2022-04-22T20:54:41Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/py-pdf/PyPDF2/security/advisories/GHSA-xcjx-m2pj-8g79"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-24859"
    },
    {
      "type": "WEB",
      "url": "https://github.com/py-pdf/PyPDF2/issues/329"
    },
    {
      "type": "WEB",
      "url": "https://github.com/py-pdf/PyPDF2/pull/740"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/py-pdf/PyPDF2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/py-pdf/PyPDF2/releases/tag/1.27.5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pypdf2/PYSEC-2022-194.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/06/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00013.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/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:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Manipulated inline images can cause Infinite Loop in PyPDF2"
}


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